Claim: BoA was a judge on K-pop Star 2.

The second season of the South Korean reality television competition show K-pop Star premiered on SBS on November 18 , 2012 , airing Sunday evenings at 4:55 pm KST as part of the Good Sunday lineup . Yoon Do-hyun returned as host and narrator , and Boom returned as live host . Yang Hyun-suk , Park Jin-young , and BoA returned as judges . The season ended on April 6 , 2013 , with Akdong Musician crowned as winner and chose to sign with YG Entertainment .   Contestants from the Top 10 of Season 2 returned for a special Dream Stage - Best of the Best episode on April 14 , 2013 , competing with contestants of Season 1 for the title of Overall Champion .