On November 27, 2018, it was revealed that Big Hit has plans to introduce a five-member boy group in the first half of 2019, marking the first time since BTS' debut in 2013 that a group would debut in six years. The group would be made up of members with an average age of 17 and a unique style, according to reports.
The agency established a website with a countdown clock and the text "You & Me" on January 9, 2019. "You and I, different yet together" is another slogan that appears on the interactive website.
Big Hit announced on February 7 that the group would release their debut album, The Dream Chapter: Star, on March 4th, followed by a television special, TOMORROW X TOGETHER Debut Celebration Show Presented by Mnet, on the same day. TXT will subsequently perform their maiden gig on March 5 at YES 24 Live Hall. On February 18, the agency unveiled the group's concept logo and the first concept images of its members.
Big Hit announced on August 8 that the group would be unable to perform at the "Lotte Duty Free Family Concert" on August 11 owing to Soobin's diagnosis of contagious conjunctivitis and Yeonjun's recovery from back pain. On August 20, it was discovered that Taehyun and Hueningkai had both contracted the infectious conjunctivitis, further postponing their music video filming and production, with the album now targeted for a late October release.
TXT announced on November 28, 2019, that their debut Japanese single "Magic Hour" would be released on January 15, 2020, with pre-sales beginning at noon on the same day.
The trio would make their Korean comeback in May, according to YTN Star on April 7, 2021. Big Hit Music answered that the comeback plans will be revealed once they are ready.
On April 6, 2022, Star News revealed that TXT would return in early May, and BigHit Music responded by confirming the reports. On April 14, they released a teaser video announcing that Minisode 2: Thursday's Child would be released on May 9.
Except for the leader, who is the only formal position announced by BigHit Music on January 14, 2019, the members do not have exact official permanent positions. They're all talented singers, dancers, and rappers.
1. Soobin, also known as Choi Soo Bin, was born in Sangnok-gu, Ansan, Gyeonggi-do, South Korea on December 5, 2000. On January 13th, 2019, Soobin was the second member to be announced. 'Shy Flower Boy/Flower Boy,' 'Pure and Clear visual,' 'Flower-Shaped Sunshine,' and 'Flower Prince' are some of Soobin's Kmedia nicknames. He stated he can put up with anything except dieting, that he like bread and isn't a picky eater, but that he couldn't stand spicy cuisine. Tteokbokki has recently become his favorite food. He owns a hedgehog named Odi and a dog named Sean. Sky blue and yellow are his favorite colors.
2. Yeonjun or Choi Yeon Jun was born in Seoul on September 13, 1999, but spent his middle and high school years in Seongnam, South Korea. Since he was nine years old, Yeonjun has lived in the United States for two years. Yeonjun attended primary school in the United States. He lived in San Jose, California, during his time in America. On January 10th, 2019, he was the first member to be revealed. A pupae is his emblematic animal. "Moawajjunie" is his fandom name. His monolids distinguish him. He enjoys dancing, ice skating, and eating. Within the first 24 hours, his debut video had topped one million views.
3. Beomgyu, or Choi Beom Gyu, was born in Taejeon-dong, Buk-gu, Daegu, South Korea, on March 13th, 2001. On January 20th, 2019, Beomgyu was revealed as the fifth and final member. A butterfly is his emblematic animal. "Bamtori," "Beombadan," and "Wolftoris" are his fandom names. Because 'Beom' means 'Tiger,' Beomgyu refers to himself as a Tiger. He enjoys playing the guitar. He has been a BigHit trainee for three years. Beomgyu used to write songs for his members all night long. "August Rush" is his favorite film. Beomgyu is a skilled claw player.
4. Taehyun, also known as Kang Tae Hyun, was born in Gangnam-gu, Seoul, South Korea, on February 5, 2002. For the past three years, he has been a trainee. Yellow is his favorite color, while "Inception" is his favorite film. Hobak is the name of Taehyun's cat. Peach-flavored drink is the first item he orders at a cheap snack eatery. Taehyun sleeps with his eyes open and not completely closed. He is a Hanlim Arts School student. On January 17th, 2019, Taehyun became the fourth member to be announced. Taehyun is someone who is more concerned with the present than with the future. Taehyun is unable to consume hot foods.
5. Huening Kai, also known as Kai Kamal Huening, was born on August 14, 2002, and spent a month in Hawaii, USA, before being halted by S. After visiting his relatives in Korea, he travelled to China and resided there for around seven years. He relocated to S. He was in South Korea for kindergarten for a brief time when he was eight years old. His father, Nabil David Huening, is German and his mother is Korean. From his father's side, he also has Polish and Scottish ancestors. On January 15th, 2019, Kai was the third member to be unveiled. A leopard gecko is his emblematic animal. Hyuka and NingNing are his nicknames.