Jay-Z Jacks Jeezy's Jam

1/20/2009 4:15 AM PST
Everyone hates a stage crasher -- unless the guy who jumps on stage is one of the greatest rappers alive.

During Young Jeezy's performance Sunday night at LOVE Nightclub in D.C., Jay-Z grabbed a mic and rapped a few of Jeezy's verses -- while Akon hovered overhead and let the master go to work.

FUN FACT: Young Jeezy's backstage demands were Skittles, Lays BBQ potato chips and Belvedere vodka.