Superbowl Weekend is here, which means there are tons of parties and events to attend, one of them being Super Saturday Night. This year's headliners, the Foo Fighters, were sure to bring a rockin' show. The band surprised the crowd by bringing country music's very own Zac Brown to the stage for a Black Sabbath cover.

Brown wasn't the only surprise guest in this once in a lifetime collaboration. Jane's Addiction singer Perry Farrell and guitarist Tom Morello also joined the impromptu performance. The collaboration was a cover of Black Sabbath's "War Pigs," featuring guitar solos galore. The event was live streamed on Twitter, and fans lost their minds over the unexpected collaboration.

Click below to watch the all-star cover:

Earlier this week (Jan. 31) at Zac Brown Band's Atlanta Dive Bar tour stop, Foo Fighters' Dave Grohl joined the band to perform another cover. The country band and rock star teamed for Metallica's "Enter Sandman" to close out their hour-and-a-half set.

Grohl and the band performed the "War Pigs" cover previously with Brown at Nashville's historic Ryman Auditorium in 2014. Before Brown took the stage, Grohl told the crowd that Brown was the only reason he decided to record his band's previous album in Nashville. He recounted the time the unlikely collaborators met, in a men's shop while they were both looking to get suits.

Zac Brown Band announced their The Owl Tour and new album on Friday (Feb. 1). The tour will run May through October, with tickets going on sale Feb. 8 at 10AM local time. Lukas Nelson & Promise of the Real and Caroline Jones will be supporting the band at select dates. Owls have held significant meaning to Brown; even his own wine line, Z. Alexander Brown, has inspiration from the owl theme.

Zac Brown Band Have One of Country's Best 21st Century Albums: