It's not every day Kanye West just so happens to show up on late-night unannounced!
But on Thursday's Arsenio Hall Show, the rapper and Big Sean did just that when they hopped onstage to assist Rick Ross on "Sanctified," a track off his new album Mastermind. (A source confirmed Yeezus' surprise performance to E! News exclusively hours before Arsenio aired, saying the unknowing audience was "in shock" when Kim Kardashian's love appeared.)
Mr. West brought his typical swag to the stage, pairing sneakers, jeans, a simple shirt and jacket with his a super sized gold chain. The audience went wild when 'Ye appeared (it's around the 1:30 mark in the clip above), and as you can see, he was into the performance as well!