ICYMI: Dave Grohl hosted Jimmy Kimmel Live! on Halloween night. There was no shortage of laughs, or fun, as Dave Grohl dressed in a David Letterman costume. Kristen Bell was a the night's guest, and she joined him on stage dressed as Tom Selleck in his Magnum P.I. days. The two jammed on a song from Frozen- after revealing that his daughters were huge fans of the Disney animated hit for which Bell voiced the lead role of Anna.
While Dave played drums for the house band, Kristin began singing the Frozen song "Do You Want To Build A Snowman?" but it quickly morphed into a mash-up of Metallica's "Enter Sandman."
The rest of the show featured an interview with Alice Cooper, who then performed "Ballad Of Dwight Frye" and "Killer" with Foo Fighters as his backing band. Cooper also presented Grohl with his own severed head during his famous guillotine act.
Watch as the Foos perform with Alice Cooper: