Which 5 of the following songs should I buy off of Itunes?

Gravel Pit(Wu Tang), What if I was White(Sticky Fingaz) Straight outta Compton(NWA) My Band(d12) Bieber Fever(key of awesome) on the jersey shore(key of awesome) Kush(dr.dre, akon, and snoop) 6foot 7 foot(lil wayne) how come(d12) purple pills(d12) fight music(d12) writer's block(royce da 5'9") what the beat(DJ clue, royce da 5'9", method man, and Eminem,) or look at me now( chris brown, Busta and Wayne.) Which 5?