What the title says, because Derby wants it. I'll edit later with my favorites, because there actually was a ton of stuff I enjoyed this year.
Edit: Actually, I'll do it now. Not like I'm busy.
Boy Groups imo BTS and Vixx are probably the next big thing as far as boy groups go, outside of the obvious YG and SM groups who do well no matter what.
2PM - Go Crazy
Beast - Good Luck and 12:30. 12:30 is probably my favorite song of the year in general.
Block B - HER
BTS - Hormone Wars and Danger
Got7 - A Got7 are my favorite rookies of the year. They're not quite my favorite boy group, but they're super close.
Henry - Fantastic
Topp Dogg - Arario Topp Dogg aren't really GOOD, and there's WAY too many of them, but they're a seriously guilty pleasure of mine.
U-Kiss - Don't Flirt
VIXX - Error
Girl Groups
A.kor - But Go
Bob Girls - No Way
Fiestar - One More This MV was what made me realize just how often kpop idols wear American Apparel. I guess it's a popular brand in Korea?
f(x) - Butterfly It doesn't have an MV, but I cannot in good conscious recommend Red Light.
Girls Day - Something It's no Expectation, but I still liked it way more than Darling.
Laboum - What About You? Laboum are my favorite girl group debut this year.
Song Jieun - Don't Look at Me Like That The lives of this were super disappointing though tbh. It was obviously lipsynced, and she'd even set the mic on her lap while the vocals kept going.
Stellar - Marionette Killer song! Not so killer execution!