VIDEO: John Mayer and Bob Weir Perform on WATCH WHAT HAPPENS LIVE

Dead & Company musicians John Mayer and Bob Weir played a little something for Andy Cohen live in the Clubhouse on last night's WATCH WHAT HAPPENS LIVE. Watch the performance below!

'Watch What Happens: Live' is Bravo's late-night, interactive talk show that features guests from the world of entertainment, politics, and pop culture. Hosted by Andy Cohen, the series includes lively debates on everything from fashion, the latest on everyone's favorite Bravolebrities, and what celebrity is making headlines that week. The show airs Sun-Thu 11/10c

Past guests who have joined Cohen in the Bravo Clubhouse include Sarah Jessica Parker, Tina Fey, Iman, Liam Neeson, Kelly Ripa, Jimmy Fallon, Anderson Cooper, Molly Shannon, Matthew Broderick, and Lance Bass.

Photo credit: Charles Sykes/Bravo