Brendon Urie was joined on stage by former Panic! At The Disco drummer Spencer Smith over the weekend.

Smith, who performed on Panic!’s first four studio albums - ‘A Fever You Can't Sweat Out’, ‘Pretty. Odd.’, ‘Vices & Virtues’ and ‘Too Weird To Live, Too Rare To Die!’ - showed up to bring Brendon his guitar as he introduced ‘This Is Gospel’ - you can check out footage from the show below.

https://twitter.com/PanicAtTheDisco/status/762372107925856257

SOUND WARNING: Okay so here's where Spencer came out to give Brendon his guitar for This Is Gospel!!! Also, warning for other videos, my sound quality isn't that great bc of where I am and the vid quality isn't amazing because I have the iPhone 5c. But all the same the content is good!!! #spencersmith #panicatthedisco #brendonurie #dallonweekes #kennethharris #danpawlovich #patd

A video posted by jenna (@beeboscopin) on Aug 7, 2016 at 1:55pm PDT

Smith officially left the band last year, with an open letter to fans detailing a battle with addition.

That wasn’t the only special guest who appeared during the show. Fall Out Boy's Pete Wentz also made a showing, to wave a flag around through ‘Victorious’. Got to find something to do with your evenings, right Pete?

https://twitter.com/PanicAtTheDisco/status/762375040247693312

Panic! At The Disco's Brendon Urie joined on stage by former drummer Spencer Smith