I put the (s) in there for you jigs ^__^
My top 5 would be:
1. T.I.
2. Fall Out Boy
3. Eminem
4. All-American Rejects
5. Nickelback
Some other ones that I like that I'm too lazy to rank are: Three Days Grace, Kanye, Jay-Z, Sum41, Linkin Park, Flo Rida, Busta Rhymes, PANIC! At The Disco, 3OH!3, T-Pain, Drake, and others.