Instruct: Classify a given review into positive or negative sentiment.
Query: ..........

R Kelly it seems has gone from a super producer and good singer to an arrogant, wanna be thug. This guy really trips me out. He sings a song about feeling on a girl's butt. How immature is that? 12 play, although very sensual... Was good. To see him regress like this is pretty ...! To see all of these garbage collaborations with whack hip-hoppers like Jay Z is equally ....! This guy has not evolved, but has dissolved. A once good singer has completely done a 180!