“Bob is fearless. He’s always willing to take chances with music of any kind”: Bob Weir joins Joe Satriani and Sammy Hagar for Best of All Worlds guest spot – and plays Hagar’s Gibson Explorer

The Grateful Dead legend Bob Weir recently made a surprise guest appearance with the Best of All Worlds band, playing Sammy Hagar's Gibson Explorer alongside Joe Satriani and co. for a rendition of Montrose's Bad Motor Scooter earlier this week (May 7).

The red rocker is in the middle of his Las Vegas residency with his Van Halen-honoring band – whose lineup comprises Satriani, Michael Anthony, and Kenny Aronoff – at the Park MGM. Weir and John Mayer, meanwhile, have been making The Sphere their second home during their second residency at the futuristic venue across the city.

Dead & Company have been enjoying some downtime recently, with their tour schedule set to resume tonight (May 9). However, Hagar wasted no time seizing the opportunity to get his long-time friend up on stage to play the Montrose classic.

“Bob is fearless,” Hagar wrote on Instagram after the event. “He’s always willing to take chances with music of any kind. This was a blast.”

The clip first shows the band running through the track backstage, with Weir playing a Les Paul. But it's Hagar's go-to Explorer that he takes to the stage, and which he uses to deliver an improvised, scrappy-in-a-joyfully-free-flowing-way, solo.

When they aren't supping tequila together, Hagar and Weir are always grabbing the chance to jam. In 2018, Weir joined Chickenfoot to jam Otis Redding with Taj Mahal and REO Speedwagon's Kevin Cronin during the Acoustic-4-a-Cure concert.

The 2023 edition of the event also saw the revival of the Hagar/Weir partnership, with Taj Mahal, Michael Anthony, and singer-songwriter Chris Isaak also present.

At 77, Hagar has said he prefers residencies to the rigors of touring city-to-city, which explains his current residency slot.

Weir’s own Las Vegas residencies haven’t been without note, either. John Mayer has played Jeff Beck’s Custom Strat at select shows, as well as an off-the-shelf Jerry Garcia Strat replica that was “too good to put down.”

In related news, Mayer also revealed the secret hiding place for his amps as he battles with the venue's stage volume limitations. During their first residency, a hand injury forced him to rethink his playing style.

Weir, who dropped his third signature D’Angelico last August, says he and Mayer have learned a lot about one another from a decade of guitar partnership, believing they now enjoy a “telepathic relationship.”