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WATCH: My Chemical Romance Join Weezer Live!

See high-quality footage of the two bands playing "My Name is Jonas."

In late September, something seriously awesome happened: My Chemical Romance joined Weezer onstage in Los Angeles, with frontman Gerard Way — a massive fan of the power-pop vets — taking lead vocals on “My Name is Jonas.” Gritty, rough footage of the collabo leaked online — but who wants to watch that? Below, watch high-quality, professional footage of their performance!

Want more My Chem? Click here to read about all the secrets behind the band’s November 22 album, Danger Days: The True Lives of the Fabulous Killjoys.

WATCH: Weezer & My Chemical Romance, “My Name Is Jonas”