Foo Fighters perform Tenacious D Cover at Denver show

Foo Fighters have recently played a huge stadium show in Denver, Colorado over the weekend, with a few surprises such as Wolfgang Van Halen coming on stage to play the opening riff to his fathers Hot for Teacher song. 

But one moment that set the internet alight was when Dave Grohl jokingly started playing the opening riff to Tenacious D’s famous song Tribute

Grohl's connection to the Tenacious D duo of actor Jack Black and Kyle Gass runs deep. Not only did he do the voice of Beelzeboss in the 2006 film Tenacious D and the Pick of Destiny, the rock legend is credited with playing drums on the group's four studio albums.

After playing a bit of the intro, Grohl leaned into the mic as Rami Jaffee plays the accordion and jokes, "You thought I was going to play a Tenacious D song, didn't you?" He then continues and starts to sing some of the lyrics before joking that he doesn't actually know the song.

We’ve got a clip of the entire concert here, skip in to about 1:31.00 to have a listen to the cover!