Chris Hemsworth Hilariously Responds to Jack Black's 'Thor' Battle of the Jams Challenge

Chris Hemsworth attends The Cinema Society's Screening Of Marvel Studios' 'Thor: Ragnarok
Jamie McCarthy/Getty Images

It's Rock God vs. Thunder God!

On Saturday, School of Rock star Jack Black -- who's also one half of the band Tenacious D -- called out Thor himself, Chris Hemsworth, by way of Thor: Ragnarok director Taiki Waititi's Twitter. The playful beef stems from the the use of Led Zeppelin's "Immigrant Song" in the movie. Black sang the classic rock song in School of Rock, and joked that the filmmakers stole the idea for the Marvel film.

"You totally poached our jam," Black says in the video on Waititi's page.

Black then issued a musical throwdown. "This is a challenge. I'm challenging you to a battle. A battle of the jams!" he declares in the video.

EXCLUSIVE: Chris Hemsworth Talks Thor's Epic Battle With Hulk in 'Ragnarok'

Hemsworth playfully responded via Instagram, admitting that he was "guilty as charged" and also a bit confused by Black's challenge.

"I don't know what that means. I know what jam is, jam on toast," he said with a laugh.

RELATED: The Secret Behind That Oscar Winner's Secret Cameo in 'Thor: Ragnarok' (Exclusive)

Whatever a "battle of the jams" is, he's on board though. "My place or yours, baby, I'm in," he offered.

But Black later upped the stakes of the "battle," recruiting Hemsworth's Thor: Ragnarok co-star Cate Blanchett for an "Immigrant Song" sing-a-long.

The star shared a video on Instagram from the set of his new movie with Blanchett, The House With A Clock In Its Walls, leading the cast and crew (including director Eli Roth) in a dinner party battle/jam session. 

Looks like the air guitar is in Hemsworth's court. For more fun from Thor: Ragnarok, watch the video below!