Hemsworth doesn't know what that even means, but he still seems into it.
Jack Black is really fired up about the use of Led Zeppelin's "Immigrant Song" in the ads for the new Thor: Ragnarok movie, because he obviously holds all claims to it following its iconic use in the comedian's 2003 movie School of Rock. After seeing the superhero flick, Black has laid down the gauntlet by challenging Thor star Chris Hemsworth to a Battle of the Jams to settle the claim to the song.
Since Led Zeppelin has so rarely licensed music for use in films, each time a track shows up on screen it's kind of a really big deal. Back when School of Rock was first in the creation stages, Black went as far as to beg for the band's permission to use "Immigrant Song." The lead actor took some time while filming the Battle of the Bands scene to enlist the crowd in his begging, saying to "the gods of rock" that, "This is a movie about rock and without that song this movie will crumble into smithereens. Oh no - the movie is kicka--. But dude, your song would be a hard rockin' cherry on the top of the mountain."