Kristen Bell & Dave Grohl give 'Frozen' the metal treatment in live performance

It's 'Frozen' like you've never seen it before!

Actress Kristen Bell arrived on show Jimmy Kimmel Live! last night for its Halloween special to perform a Frozen-Metallica mash-up live on TV.

The actress, who voiced 'Anna' in the animated film, sang 'Do You Want To Build a Snowman' while dressed as Tom Selleck from Magnum, P.I.

Foo Fighters singer Dave Grohl drummed behind her (dressed as David Letterman), saying it would fulfill his kids' dream to "jam a song", and become the "coolest dad in the world".

However, it's not long before "Snowman" turned into Metallica's 'Enter Sandman.' Or maybe that's "Enter Snowman"...