Watch: DMX, Swizz Beatz Perform at Alicia Keys NYC Concert

A mini Ruff Ryders reunion occurred during last night’s Alicia Keys concert in New York City. DMX and Swizz Beatz hit the stage at Madison Square Garden as surprise guests on Keys’ Set The World On Fire tour stopover. The two performed “Ruff Ryders Anthem” and “Party Up (Up in Here).” Watch the mayhem unfold below.