Dave Grohl was the guest host on "Jimmy Kimmel Live" last night. He dressed up as Dave Letterman, complete with the Santa Claus beard.
Kristen Bell was on "Kimmel" last night, and she told Dave Grohl about how her daughter forced her to be Elsa for Halloween, for two different parties. And her daughter was also Elsa. On the show Kristen was dressed as Magnum, P.I. SO DAVE gets her to sing the FROZEN song and mashes it up with METALLICA.
Only Dave Grohl would do that!