Gosh, I have that many bands/artists that I love because of liking kpop so long. I'll try to keep it small and go for the ones I follow more often. I'll put solos down for some, even though they where/are in established bands, because technically, they've gone solo. They're a new artist I would say!
2PM, 9Muses, 100%, AA (Double A), A-JAX, APINK, B1A4, B.A.P, BEAST (B2ST), Bigstar, Boyfriend, BTOB, C-Clown, CRAZYNO, Cross Gene, D-Unit, f(x), F.CUZ, G.NA, History, Heo Young Saeng (Solo), Jo Kwon (Solo), Infinite, Kim Hyung Joong (Solo), Kim Hyung Jun (Solo), LED Apple (if you consider them kpop), MBLAQ, Miss A, MR.MR., MYNAME, N-Sonic, NU'EST, Park Jung Min (ROMEO, Solo), Phantom, RaNia, Roh Hi Hoon, SHINee, Spica, Sunmi (Solo) Super Junior, Tasty, Teen Top, TOUCH, Trouble Maker, U-KISS, VIXX, Wonderboyz, ZE:A
Wow, my shortening it down it still doesn't look very small...and I could add more. xp
Yeah, I will forever be excited because of SHINee the most despite all of them! But if any of the others went "oh lookie here, we have a comeback soon" I would run to see what was happening almost as much!
[I was going to put Supernova (Choshinsung) down, but whilst they're a Korean made band, they tend to promote more in Japan so I wasn't sure, so I'm putting them here anyway.]