Watch Run The Jewels Bring A Fan Onstage To Rap With Them At Lollapalooza

One Run The Jewels fan just had an awesome Lollapalooza. During their set at the festival yesterday, Killer Mike and El-P spotted a guy in the audience with a sign reading "Let Me Rap Legend Has It," and they obliged. They brought him up to the stage to perform the song with them a cappella,…