I dont usually watch Letterman or listen to Foo Fighters

[reno cool]

but last night they played a cover of War Pigs with Zac Brown(?)
and tonight played with Heart sisters who are bad asses fat and all
both spiritid performances worth seeing :

 

[FairWarning]

Dave Grohl has done some excellent side projects. Zac Brown Band had an EP out called The Grohl Sessions, may want to give it a listen. I recommend his early project Probot.