Ever wonder what a Robert Plant reworking of Jay-Z's "99 Problems" might sound like? New Roc Nation signee Hugo has the answer. This mystic acoustic number feels a bit like a novelty, but the heavy, banjo-laden production hits hard.

Photos: Hip-Hop Royalty: How Jay-Z and Beyonce Run This Town

“Everyday People”

"Everyday People" managed to trailblaze in two different ways -- it was one of the first pop hits to deal with the subject of racial harmony, and it utilized Larry Graham's "slap" technique on the bass guitar, which would soon be copied by countless other bassists. Graham once said about his pulsating style, "I'd never done that before … that's where the freedom of creativity came in for the band, that we'd be allowed to do that." In 1978, the song's line "Different strokes for different folks" would be borrowed for the title of the hit television show Diff'rent Strokes.