Song Minho started out underground under the stage name "Mino" or "Hugeboy Mino" with other underground rappers-turned-idols, namely Block B’sZico, Kyung, P.O and M.I.B's SIMS. Minho was initially a trainee intended for the male group Block B, but left the group before debut for personal reasons. In 2011, he made his debut as a rapper with the ballad group BoM under Y2Y Contents Company, however the group was disbanded two years later due to its lack of popularity with the public. In 2013, he was recruited into YG Entertainment through private auditions after being recognized from his acting debut in the March 2012 cable drama The Strongest K-POP Survival in Channel A. He was introduced in the reality-survival program called Who is Next: WIN as part of "Team A." Team A and their adversaries Team B were both formed from trainees within YG Entertainment. The teams competed against each other in order to debut as the first YG boy group in eight years, following on the strong legacy of YG's previously debuted male group Big Bang. At the conclusion of the program the title of WINNER was given to Team A after they won all three rounds of public voting. Song and fellow WINNERKang Seung-yoon teamed up with Yoon Jong-shin for his monthly project release single called "Wild Boy".