John Mayer’s time is coming quickly. Soon enough he’ll be sharing the stage alongside Bob WeirBill Kreutzmann, and Mickey Hart of the Grateful Dead for the ensemble’s slated Dead & Company dates, but over the weekend, Mayer paid a visit to the Hollywood Bowl during the Zac Brown Band show to jam with with his old friend.

John Mayer and Bob Weir Comment On Touring After Fare Thee Well

Mayer emerged at the end of Brown’s set and lit into a trio of covers including, Bill Withers’ “Use Me,” a Jimi Hendrix-esque version of Bob Dylan’s “All Along The Watchtower” and Avicii’s “Broken Arrows.” Take a look at “Watchtower” from the show below: