question about R&R Hall of Famers & future hall of famers

suns rival

why are there r & b and rap artists included in rock & roll HOF? their music is not rock.

and check out this future HOFamers poll:

http://spinner.aol.com/rockhall/future-inductees-poll

jay-z
madonna
mariah carey
snoop dogg

wtf?

boroff89

See this thread: http://forums.pearljam.com/showthread.php?t=237414