Ready for round 5 of "CLEAN SKIES, CUH LEAN CITY?" Well here it is, hot off the press from Inkigayo, the mastermind behind all of these songs, 4Minute with their promotion of the Korean Subway System (which is great by the way, one of the best in the world)! Following F.T. Island's version, Kara's version, Brown Eyed Girls' version, and f(x)'s version, the quintet put on a nice performance. Check it out below: credit: CodeMonmonSeason3