High school students from all over South Korea compete against each other to find out who is the best high school rapper.

'Golden Key' is a communication program with the fans. GOT7 has volunteered to go on a trip to communicate with their fans. We can see how the GOT7 Mark and Youngjae expresses their thanks to ahgases (their fans).

The three hosts of the show, Lee-Teuk from Super Junior, Kim Bum-Soo and Yoo Se-Yoon along with the guest singer has to figure out talented as well as tone-deaf contestants given visual, lip-sync and truth-telling evidences. Claimed by Mnet as mystery music show, provides the audience with competition entertainment in an unprecedented manner. Stay tuned for one of a kind music show that will consternate everyone from hosts, judging panels, audience and even the guest singers!