Yes, the Foo Fighters will headline Sasquatch 2011, but Dave Grohl’s got another interesting high profile appearance coming up next year. NME is reporting that Grohl will appear in next year’s Muppets movie written by and starring Jason Segal. Says NME:The Foo Fighters frontman will reportedly stand in for regular Muppets drummer Animal while he attends anger management treatment as part of the movie’s plot.So appropriate. Animal and Grohl seem like two completely kindred spirits, flailing long hair and all.Guess what other musical superstar is confirmed to make a cameo in the film?Duh.