Marvel Studios Thor: Ragnarok..L to R: Thor (Chris Hemsworth) and Hulk (Mark Ruffalo)..Photo: Film Frame..©Marvel Studios 2017After Jack Black accused "Thor: Ragnarok" of "totally poaching his jam" for using Led Zeppelin's "Immigrant Song," Chris Hemsworth responded that he's more than ready for a battle of the jams. (Even though he has no idea what that means.)

Black posted an Instagram video a few days ago in which he said, "I'm calling you out, Thor. This is a challenge!"

This is a challenge! #SchoolOfRagnarok @chrishemsworth @taikawaititi

A post shared by Jack Black (@jackblack) on

In his own Instagram video, Hemsworth admitted that he is "guilty as charged" when it comes to using the same song Black did in his 2003 comedy "School of Rock." And he's more than willing to battle... if he just could figure out what Black means by "jam."

in response to @jackblack #schoolofragnarock #jam @taikawaititi @marvel #thorragnarok

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Hey, we're ready for "School of Ragnarok." Bring it!

[Via MSN]