Two generations of influential northwest rock and roll came together on stage last night (April 2) when garage rock legends the Sonics were joined by Nirvana bassist Krist Novoselic and Mudhoney's Mark Arm.

Novoselic teamed up with the Sonics for a couple of numbers, including a blazing rendition of their '96 classic, "Cinderella." Arm actually opened the show and then later took on lead vocal duties for the savage "Shot Down":

Earlier this week, the band teased fans on their Facebook page about special guests showing up to the show. "It's April Fool's Day and rumors are flying as to who may be joining The Sonics on stage for their Moore Theatre record release show Thursday April 2nd," it reads. "We can only confirm that some of these rumors are true!"

The Sonics just released their first album of new material in almost 50 -- count 'em, 50 --years! This Is The Sonics is full of the same brand of no frill, lotta thrills rock and roll that has made them a favorite of die hard rock and roll fans for decades. The rockers lay dormant for years until 2007 when they began playing select dates all across the world. Since then, they have gradually made their way back to a full-time project.

Their new album, produced by noted garage rock kingpin Jim Diamond, is as much a blast from the past as it is totally contemporary; many veteran acts could take a tip from the Sonics as to how it's done. This Is The Sonics is out now on the Revox label.

The current lineup includes original members Jerry Roslie on lead vocals and keyboard, Rob Lind on sax, harp and vocals, and Larry Parypa on guitar. They are joined by Dusty Watson on drums and bassist Freddie Dennis.

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