t-ara and amber 2 There's no denying that Show Champion chose two superstar co-hosts in T-ARA's Eunjung and f(x)'s Amber. The hostesses decided to team up at the end of the first episode and surprise fans by duetting on Psy's 2002 hit "Champion."  Performing "Champion" on Show Champion is pretty clever. They sang, they danced, and they rapped their way through the dub-step update to the track, reminding the crowd that they know their way around the stage. Take a look at the performance: What song would you like the ladies to duet on next?