Rap and R&B superstars hit the stage at Power 105.1's annual Powerhouse event in Brooklyn, N.Y., on Thursday (Oct. 30). Closing out the concert was Jeezy, who brought out a very special guest.

The Atlanta rapper performed a medley of his street hits including tracks from his latest album, 'Seen It All.' The 'Put On' rhymer even surprised the crowd by bringing out Jay Z to perform their collaborative effort, the title track off his new LP.

The Brooklyn native casually walked onstage to perform his verse on the infectious street banger. Since it was Halloween Eve, Hov was dressed for the occasion. The rap mogul wore a hockey mask like Jason Voorhees in the 'Friday the 13th' along with a checkered flannel shirt and Timberland boots. In the end, Jay figuratively slaughtered the crowd with his performance.

Other performers at Powerhouse included J. Cole, Ne-Yo, French Montana, Chris Brown, Trey Songz, Tinashe, T.I., Dej Loaf, Migos, Remy Ma and Bobby Shmurda.

Watch Jeezy and Jay Z's Powerhouse performance at the Barclays Center above.

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