Brad Pitt Performs with Bruno Mars! (WATCH)

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Brad Pitt was part of Bruno Mars' band on Saturday night!

The A-list actor was on the tambourine as Bruno sang Get On Up at the Make It Right Foundation gala in New Orleans. A few of the audience members caught the moment on camera.

Bruno and Brad weren't the only famous faces at the event. Chris Rock hosted the gala and comedian Jim Gaffigan and the band Kings of Leon also performed.

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The Make It Right Foundation raises money to build affordable, eco-friendly homes in New Orleans following Hurricane Katrina.

When you're done watching Pitt on the tambourine, check out this video of him throwing a beer to his New Orleans neighbor Matthew McConaughey! McConaughey was down South for an event for his Just Keep Livin' Foundation. NFL pro Drew Brees was also in attendance.