"the series which would revolve around a rock band reaching the brink of stardom and breaking up."
I don't think that description matches the Foo Fighters. Dave's always had a great sense of humour, and the world really started to see it with the Big Me music video. Glad they have a musician in on the show. It'll be a side project for Dave, like so many other things have been. I could see him doing cameos dressed as different characters though and maybe bringing in some guest star power to give the series a push.