Twitter may prove to be the downfall of yet another golden-era hip-hop group. Last night, Naughty By Nature front man Treach tweeted, "Vinnie from NAUGHTY BY NATURE is Officially FIRED," referring to fellow founding member Vin Rock. He walked back the statement today, insisting the group was still together but having internal problems. Either way, Vinnie's got plenty of company in case he needs a support group. Read on to see other musicians who have been kicked out of bands, groups and crews.