Josh Brolin [1] stopped by The Tonight Show [2] on Tuesday, and boy, did he bring the laughs. The Deadpool 2 [3] actor, who stars as Thanos in this year's biggest film, Avengers: Infinity War [4], chatted with host Jimmy Fallon [5] about how he manages to keep a level head with all of his recent success. But before that, Brolin took a moment to flaunt his best assets, showing off his backside to the audience, and all we can think about is those fans who can't stop talking about how Thanos is a "thicc daddy." [6] Yes, really. Watch the video above to see Brolin try different voices for Thanos and prepare to laugh your butt off, pun intended.