One of my favorite things about living in New York is that almost every big rap show featured some kind of unannounced special guest. Case in point: Last night, Kendrick Lamar’s DAMN. tour — the one where Travis Scott is spending his opening set riding around on an animatronic bird — came to Brooklyn’s Barclays Center. And during Kendrick’s set, 2 Chainz and Scott invaded the stage to perform their recent collaboration “4 AM.” And while we might think of Kendrick as a rap fundamentalist, he looked very psyched to be sharing his stage with those two. (As far as I can tell, the last time Kendrick and 2 Chainz shared a stage was when they performed “Fuckin’ Problems” at the 2013 BET Awards; that’s where that photo comes from.) Watch some videos below.

2 CHAINZ x KENDRICK LAMAR x TRAVIS SCOTT. That just happened. #KendrickBKLYN @2chainz @kendricklamar @trvisXX pic.twitter.com/BDYDyWW4rx

— Barclays Center (@barclayscenter) July 24, 2017

Kendrick Lamar brought out 2 Chainz & Travis Scott to perform 4 AM. pic.twitter.com/5sXgU3FGjA

— Only Hip Hop Facts (@OnlyHipHopFacts) July 24, 2017

Mannn thank you 🙏🏿 NYC 🌸🏚🌸🏚🌸🏚🌸🏚🌸🏚#4am @kendricklamar @travisscott

A post shared by 2 Chainz Aka Tity Boi (@hairweavekiller) on Jul 23, 2017 at 8:36pm PDT

Also, 2 Chainz is teasing something G.O.O.D. Music-related on Instagram:

A post shared by 2 Chainz Aka Tity Boi (@hairweavekiller) on Jul 23, 2017 at 11:15am PDT