In this clip 4Minute perform a shorter version of Muzik followed by a cover of the song Wae Bulleo (왜 불러) which was originally released by a group called DIVA in 1998.
4Minute ~ Muzik + Wae bulleo Live@KBS Star Dream Sketch 20091001
44MB 3:12 H.264/AVC 480×272 PSP Ready
Credit: source video from yoobin.skyrock.com
I like their outfits in the second part and So-hyun looks unusually good here. Actually they all look pretty good (even Ga-yoon) 
This cover of Wae bulleo has been my “feel good” song recently.
Update 2009-10-29: I re-encoded the video in higher quality and replaced the old one.
2009-10-22 (Thu) 06:25
Why did you add (even ga yoon)?
Did you find her not as pretty as the others?
just curios ~.~
2009-10-22 (Thu) 14:26
Yeah, I think Ga-yoon is the least pretty of the group. It’s mostly based on the first impression I got from the Muzik PV where she didn’t look her best so to speak.
2009-10-29 (Thu) 23:10
Higher quality Wae bulleo by 4Minute…
I just wanted to say that I re-encoded 4Minute’s performance of Muzik and Wae bulleo in higher quality and replaced the old file.
I’m not going to re-encode all previous videos (it’s nicer with new stuff), but that video is pretty rec…