Best Question

I didn't even know who this guy was until that SNL. Who was it that said his hair seemed to have purpose?
Anyway, I'm doing the music at a big (possibly huge?) party in the middle of June where present-day cool-music (hip-hop, primarily) is in order . . . is it cool if/am I expected to/should I definitely not play Mr. Bieber? Miley Cyrus? Selena Gomez? Keisha? If so, what are their jams?

I think I'm open to giving them all a shot except for Keisha as she was so whack on SNL when she was on it.