Jack White played Louisville's Forecastle Festival on Saturday night, which is all fine and dandy, but who did he cover? That's all we care about, right? Well White decided to rework 'Icky Thump', inviting Jay-Z's '99 Problems' to join the party.

Not that long ago White released a special edition of Hova's Magna Carta Holy Grail through his label Third Man Records. So this cover, added to that special edition album release, surely makes them best buddies, right?

Watch the performance below.