It was a party at Brooklyn's Barclays Center last night at Powerhouse 2014. The show included performances from some of Hip-Hop's top artists including Tinashe, Migos, Bobby Shmurda, French Montana, J. Cole, Trey Songz, Chris Brown and Jeezy. All of the artists that performed represented. But, the highlight of the night was when HOV surprised everyone during Jeezy's set to close out the show. The two artists performed the title track from Jeezy's latest album "Seen It All." Dressed in a Jason Voorhees costume, Jay-Z lit up the crowd like only he can. Check out footage from the performance below.