TO1

TO1 (Hangul: 티오원; formerly known as TOO (Hangul:티오오)), is a 10-members boygroup currently under WAKEONE, and formerly under n.CH Entertainment and Stone Music Entertainment. Formed through the show World Klass, the group officially debuted on April 1, 2020 with their first mini album REASON FOR BEING : Benevolence.

Etymology
"TOO" is an acronym for "Ten Oriented Orchestra", while the group's new name "TO1" stands for "Together as One"

2019: Survival show World Klass
On June 25, 2019, Stone Music Entertainment and n.CH Entertainment announced that they would form a new boy group called "TOO", as an acronym for "Ten Oriented Orchestra", through a new global survival program to be aired on Mnet in September.

On July 3, a teaser video was released, revealing the show's title to be World Klass. The 20 trainees were introduced starting on July 10, and the show premiered on October 4.

On December 6, the top 10 winners were announced through the live finale. Two days later, n.CH announced that Han Jun, who made it to the final lineup after placing third, would not be joining the group due to partaking in an unauthorized leave and disreputable scandal when he was a trainee. He was replaced by Jae Yun, who had the next highest number of votes on the show.

2020: Debut with REASON FOR BEING : Benevolence, Road to Kingdom, first comeback with Running TOOgether
The group officially made their debut on April 1, 2020 with the first mini album REASON FOR BEING : Benevolence, with "Magnolia" as the title track

On June 12, TOO announced they would be making a comeback in July with their second mini album. The album titled Running TOOgether was released on July 15 with "Count 1, 2" as the title track.

Mini albums

 * RE:BORN (2021)
 * RE:ALIZE (2021)

Mini albums

 * REASON FOR BEING : Benevolence (2020)
 * Running TOOgether (2020)