The Foo Fighters put on a number of high energy performances during Saturday’s “Vax Live” concert from Global Citizen.

“We thought we would make this a special occasion for all of us,” lead singer Dave Grohl told the crowd near the end of their set.

RELATED: Jennifer Lopez Puts On Two Incredible Performances During ‘Vax Live’

“Why not call a friend who is a rock legend,” he continued before welcoming AC/DC’s Brian Johnson to the stage.

And just like that, it was like live concerts never went away as they broke out into “Back in Black”.

RELATED: NCT 127 Deliver Show Stopping Performance Of ‘Kick It’ At ‘Vax Live’

Global Citizen also shared a behind the scenes look at the Foo Fighters prepping.

In the clip, Grohl spoke of how music can bring people together and how excited they were for their first show in over a year.