The "DAMN." tour is this year's must-see hip-hop event, no doubt. The primary attraction, of course, is the live imagining of Kendrick's brilliant new album. But there are also opening sets from D.R.A.M. and Travis Scott, the latter whom performs on the back of a mechanical eagle. A surprise guest added to the spectacle at Sunday night's concert in Brooklyn -- the second show at the Barclays Center. Kendrick invited Travis back on stage and then brought out 2 Chainz so that the two of them could perform "4 AM," their collab off Tity Boi's new album, Pretty Girls Like Trap Music

@joemoore724 this shit lit πŸ”₯πŸ”₯πŸ”₯πŸ”₯NYC

A post shared by 2 Chainz Aka Tity Boi (@hairweavekiller) on

Kendrick plays hype man as Tity and Travis turn all the way up for their summer hit. After the show, 2 Chainz posted some high quality footage of the exciting performance on his Instagram. 

There are still over five weeks left on the "DAMN." tour. Attendees will get to witness the genesis story of the character that is Kung Fu Kenny and recognize his brave, diligent journey to where he now finds himself -- a master of the art form. As for 2 Chainz, his "Pretty Girls Like Trap Music" tour, featuring opener Young Dolph, kicks off at the beginning of next month.