photo via KAABOO on Facebook

California’s KAABOO Del Mar festival wrapped up on Sunday in San Diego, and the packed day of music featured an unexpected highlight when New Orleans group The Revivalists welcomed special guest Bob Saget to the stage to help out in cover a classic from The Who.

Around midway through the band’s set, Revivalists frontman David Shaw announced the arrival of “everybody’s best friend,” who ended up being comedian and Full House star Saget. After Shaw proclaimed that “rock-and-roll should be unrehearsed, right?,” the group rolled through a rendition of “My Generation,” with Shaw and Saget sharing lead vocals.

Watch the surprise collaboration below via KAABOO’s free stream (Saget emerges around the 31:25 mark). (h/t WXRT) Plus, check out Saget’s performance of the Who favorite on Full House (with Jesse and the Rippers, of course).

In other KAABOO news, the festival announced today that it will be moving locations in 2020, to Petco Park, where the San Diego Padres MLB team plays. The annual gathering has also rebranded as KAABOO San Diego.