Welcome Back

Debut Album
Welcome Back is iKON's debut album. Originally planned to release November 2, 2015, the full version of Welcome Back was not released until December 24, 2015. The half version was released October 1, 2015. The tracks from Welcome Back won a total of 8 times on weekly music shows. Both versions of Welcome Back charted at #1 on the Gaon Album Chart.

B.I was the album's producer and the key writer of both lyrics and music.

Half Album
The half album released with two music videos: Airplane and Rhythm Ta.

Full Album
"Apology" and "Anthem" were released on November 16, 2015, as part of the release of the full album. "What's Wrong?" and "Dumb & Dumber" were the title tracks from the full version of Welcome Back.