Foo Fighters front-man Dave Grohl guest hosted Chelsea Lately on the E! network, for some reason.  He talked about Justin Bieber's Grammy snub and making out with Kid Rock's mom.  The video above shows us how he warms up for the show.  Below, you can see clips from a round-table and an interview with Ray Romano (that's where the Kid Rock story is).

Grohl is currently promoting his new documentary, Sound City.  We assume that's why he was there.  The film is available for pre-order, right now.