All Day Project

ALLDAY PROJECT is a 5-member mixed group that debuted on June 23, 2025, under THEBLACKLABEL. Unlike the group name, it is a fixed group, not a project group. They are a group that achieved great success despite being rookies with their debut songs Famous and Wicked. The five members are Annie, Tarzan, Bailey, Woochang, and Youngseo. Annie, whose real name is Moon Seoyun, is a female member born on January 23, 2002. She is the first chaebol idol in South Korea from the Shinsegae family. As the oldest member of the team, she shows a T-like side as an ESTJ, but in contrast, she also shows many moe-like aspects. Her position is rapper. Tarzan is a male member born in Ulsan on September 27, 2002, and is a former modern dance dancer and model. He is an ENFP, and his nickname is Kkikki, which reflects his high energy in the team. He is in the 02 line with Annie. He is playful and has diverse fashion styles. His position is rapper and dancer. Bailey is a female member born in California on February 24, 2004, and is a dancer who started dancing at the age of two. She is bilingual in Korean and English and is an INFJ. She has the nickname 'Inward Kkikki,' which means that while Tarzan is openly energetic, Bailey is the one who quietly gets into trouble alongside him. She has a good sense of rhythm. Her hobbies are baking, and her position is rapper and main dancer. Woochang is a male member born on January 20, 2005, and is a former Show Me The Money contestant. His nickname from that time is Santa. He is an ENFP, and according to the members, he can be serious because he is going through puberty... He has some playfulness due to Tarzan's influence. He is the main rapper of the team. He was previously a HYBE trainee. Youngseo is the only vocal member and the youngest, born on November 13, 2005. She came in after going through NewJeans debut group and R U Next, and she is an ESTJ. She is in charge of the idol visuals of the team and is a visual member along with Woochang.

Chemistry is

2-person [edit]
3.1. Annie & Tarzan
02z, Oxygenz
They are the same-aged members born in 2002, who are the oldest in the team. They are also called 02z, but the names 'O2z' and 'Oxygenz' were created by visually comparing the molecular formula of oxygen, O₂, with the number '02' and the combination of members born in 2002.

In their own content, when Annie, who was suffering from indigestion after eating gnocchi, told Tarzan that her stomach hurt, he played a prank on her[1], and they are also mentioned as the chemistry of 'cousin sister who plays with elementary school students,' 'princess and pet Kkikki,' and 'Shin-chan and Misato'.

In Kim Shin-young's Hope Song at Noon, Annie said that unlike the image of the broadcast where Tarzan is always full of energy, he is serious and professional when performing on stage or practicing.

It's hard to believe they are the same age, but they are.

Annie revealed on Kim Eana's Starry Night that she wants to be like Tarzan's bright energy[2].

In the self-content of All Day Pro[3], they revealed that Teddy was with them when they first met, and before hearing that they were the same age, Annie thought Tarzan was much older than her. After finding out they were the same age, they were happy to see each other and ???: LETS CHANGE THE WORLD!! They held hands, and the moment they held hands, she felt she’s tough.

Annie has a capital T personality, and Tarzan has a capital F personality. It seems that Tarzan is the most disappointed by Annie's T-like moments.

Both of them have a sense of humor and wit, so they have appeared on many variety shows together. They both went on Piksik University, Omniscient Interfering View, and Salon De Rip.

3.2. Annie & Bailey
Bumblebee
Bailey is a native English speaker, and Annie is also almost a native English speaker, so they often talk to each other in English. Annie said that because they both lived in the United States for a long time, they have a lot in common with Bailey, and she likes Bailey very much.

They are also the two who overlapped the longest as THEBLACKLABEL trainees in the team.

3.3. Annie & Woochang
Annie-call [4]
They show the chemistry of siblings or cousin sister - cousin brother. Basically, Annie throws facts at Woochang and teases him, but Woochang doesn't back down and teases Annie, showing a frequent bickering. At first, it took time for them to get close, but now they are the combination that shows the most family-like atmosphere.

As far as they have shown, Youngseo and Annie tease Woochang the most.

They are the main characters of the team's Korean food members.

They are the members who have directly witnessed Woochang's talent the most (..).

According to Annie's claim on DAY OFF, Woochang is going through puberty.

They revealed on Piksik Show that Woochang is boring, so they would choose Tarzan if they went out to play.

3.4. Annie & Youngseo
Annie-bbang, Youngseo-yun
This is the combination of Annie, who is the oldest in the team, and Youngseo, who is the youngest. They also have in common that they are alumni of Gyeonggi Elementary School. The name Youngseo-yun, which combines Youngseo and Annie's real name Seoyun, is used the most.

Youngseo calls Annie 'Annie unnie'.

They have the same MBTI, ESTJ. That's why, as revealed on ADPODCAST, they got close to each other quite quickly.

Unlike with Woochang, Youngseo does not argue with Annie's words as the oldest sister, and in situations where Annie is rarely teased or made fun of, Youngseo quietly does not react at all, showing that she likes and is obedient (..?) to Annie. Of course, it is natural to follow the words of an older person, but judging from the scene where Youngseo says that Tarzan, who is the same age as Annie, looks like a chieftain when he eats pizza, it doesn't seem like she is just following because of the age difference.

When they went to eat acai bowls, Youngseo pushed Annie and bought it herself when Annie was about to pay. Annie said that Youngseo was so cute at that time. A twenty-year-old who buys a meal for a chaebol.

Youngseo bought Annie a white camera for her birthday.

3.5. Tarzan & Bailey
Tabe
They are the members in charge of the team's dance and show a unique chemistry due to their personalities. Before their debut, Tarzan was a modern dancer, and Bailey was a professional dancer, so they show a unique dance harmony.

Tarzan is also the one who takes the best care of Bailey, who is from the United States and is not familiar with Korean and Korean culture and has an introverted personality. Tarzan has a fluent English because he had a short experience studying in the United States when he was young, and his personality is extroverted with a capital E, so he is the best person to help Bailey quickly adapt to Korean life.

They are the combination that is most often linked with chemistry along with the 05z. Annie said that Bailey mainly learns Korean from Tarzan. Tarzan often teaches and takes care of Bailey in Korean and Korean culture, and they are similar in their behavior patterns to the point where they are called 'extroverted Kkikki and introverted Kkikki' (?).

As a result, Bailey often imitates Tarzan's way of speaking, so she often uses the Gyeongsang dialect. The most used phrase is 'mwo-ra-ka-no'

Bailey often takes away the cookies that Tarzan made. ???: Cookie Monster.

In terms of chemistry, Tarzan has more of an older brother and Bailey has more of a younger sister moment. However, in Kim Shin-young's Hope Song at Noon, they revealed that there are many cases where Bailey is like an older sister than herself.

Bailey said that Tarzan's first impression was shocking. Bailey greeted him in Korean by bowing 90 degrees in the Korean way when they first met, but Tarzan said, 'WHATS UP B??' in English, which surprised her. She was even more surprised because they hadn't even exchanged names yet, and Bailey didn't even know that Tarzan knew her name.

3.6. Tarzan & Woochang
Santazan, Tarjo
They are the male members of the team.

Tarzan has a black tofu face, and Woochang has a white Arabian face, and they are a combination that has opposite charms, so many fans like them. There is also a saying that they are like Hiccup and Toothless.

They experienced a pre-debut before debuting as a group. Tarzan is a model, and Woochang is a solo artist.

You can feel like you're in a boys' high school[5]. Tarzan playfully sprays mist on Woochang, or Woochang gives Tarzan a lizard model, and they play quite childishly.

Woochang said that he relied on Tarzan a lot during the time when he was awkward with other members. Tarzan took care of Woochang a lot, such as giving him a ride in his car for Woochang who lived far from his home.

They have the same MBTI, ENFP. However, they show many differences in their behavior patterns. Tarzan is closer to the playful style, and Woochang has an INFP-like aspect even though he is an ENFP.

ALLDAY PROJECT uses different dorms for men and women, so they are in the same dorm.

3.7. Tarzan & Youngseo
Kkitcats
Youngseo appears as the youngest sister who is often teased by Tarzan's pranks, such as being called Saojeong, but in actual practice or on stage, Tarzan takes care of her quite a bit, showing the image of a warm older brother.

3.8. Bailey & Woochang
Woobiz
Bailey's first impression of Woochang is 'wow a korean. man.' (..)

Bailey calls Woochang Jo Woochang-ssi.

3.9. Bailey & Youngseo
Bellnyangs
Among the female members, Bailey is in charge of the second, and Youngseo is in charge of the youngest.

3.10. Woochang & Youngseo
05z, Cheetachiz [6]
They are the same-aged members born in 2005, who are the youngest in the team. They have in common that they were both from the HYBE debut group in the past.[7] They overlapped for about two years during their trainee period after Big Hit acquired Source Music, but they said they didn't know each other at the time.[8]

They are a visual combination in the team, and they are overwhelmingly linked with chemistry along with Tarzan & Bailey, probably because they have good chemistry just by being together. The videos showing Woochang and Youngseo's chemistry, such as Woochang taking care of Youngseo and the scene where they make eye contact and talk to each other during the stage, all have high views. However, there are surprisingly few contents of the two people uploaded on the official account despite the crazy popularity.

There are many reactions that the two members are adding to the idol feeling and harmonizing within ALLDAY PROJECT, where each member has a strong individuality. In fact, both of them have solid basic skills as they have gone through a long trainee life, and they are skilled in facial expressions and gestures on stage.

When they first met, they were very awkward, to the point where they would pass each other by saying, "Hello." In fact, if you look at The Day Before EP.1 'TARZZAN' # filmed in October 2024, Youngseo still uses honorifics to Woochang,[9] and they said it was difficult to get close.

According to Youngseo's claim, Youngseo used honorifics to Woochang for about a week at first. However, Woochang denies that Youngseo has ever used honorifics.

Although they are the same age, born in 2005, Woochang was born in January, and Youngseo was born in November, so there is a big difference in their birth month. There is an episode in the Studio Choom behind-the-scenes where Woochang said that he was older than Youngseo and was ignored.

They are the real-life version of the dog and cat combination, as Youngseo has a cat-like face, voice, and personality, and Woochang is also dog-like in the above aspects. So, when they are together, you can see the chemistry like a dog and a cat. Youngseo mostly teases (?) Woochang, but Woochang is not easily hurt and immediately comes back to Youngseo and says he is bored, and they play well together.

They have opposite tastes. Woochang is very sensitive to heat, and Youngseo is very sensitive to cold. Their tastes are also divided into Korean food/Western food.[10] Woochang prefers achromatic colors such as white or black, while Youngseo likes pink. Woochang's favorite character is Spider-Man, and Youngseo likes Sanrio's My Sweet Piano.[11] Their MBTIs are also different, with Youngseo being ESTJ and Woochang being ENFP, except for the E.

In Kim Shin-young's Hope Song at Noon, they revealed that they often bicker with each other (?), but Youngseo denies it. Youngseo often takes the lead, and Woochang mainly plays the role of defense. However, Woochang also says that he wants Youngseo's part, and he can also be seen teasing Youngseo often, such as Youngseo saying, "Are you a comedian?" and not recognizing him after a year.[12]

Woochang is the person who gave Youngseo the nickname ZERO. He said he named it Zero because her name is 0seo, and they weren't close at all when he gave her the nickname. That's why, unlike the other members whose phone storage names are all their real names, Youngseo's storage name is uniquely the nickname Zero. However, Woochang himself said that his point is his image, but the other members all have images when a call comes, but Youngseo has no image because her nickname is Zero (..). Youngseo liked the nickname Zero, so she set her official communication app nickname to Zero, and her favorite number also changed to 0.

They were special MCs at the 900th episode special M Countdown held in Boryeong, Chungcheongnam-do on August 7.

4. 3 people
4.1. Annie & Bailey & Youngseo
A.B.Y, Cherrymaru
They are the female members of the team. The name 'A.B.Y' was mentioned in Youngseo's Instagram story.

4.2. Tarzan & Bailey & Youngseo
Tabeje
It is a name that combines 'Ta' from Tarzan, 'Be' from Bailey, and 'Je' from Youngseo's nickname zero[13]. It was mentioned in Tarzan's Instagram story, and it was also mentioned as the title in the official shorts of the ALLDAY PROJECT YouTube channel.

The emojis are 🐆🐝🍒.

4.3. Tarzan & Bailey & Woochang
Kkikkiz
It is a combination that was created with the appearance on Omniscient Interfering View as a starting point, and it is a combination of the male member combination Santazan with Bailey added.

Fans unofficially call them Kkikkiz because Tarzan and Woochang, who are 'E', and Bailey, who is the only 'I' in the team, play together with them, and it looks like Kkikki and the younger Kkikkis.