I like it when rap songs sample other rap songs. It just reinforces the pirate spirit of hip-hop. We'll take anything and make it new. Nothing is safe. That's what Mike Will did when he sampled (replayed and switched up is more like it) the string melody from Three 6 Mafia's 2005 single "Side 2 Side". What you get is a dumb hot cut to make you get buck.
Rae Sremmurd "Powerglide" feat Juicy J
Three 6 Mafia "Side 2 Side" (Sample @ 0:00)