By Jonathon Dornbush
November 17, 2015 at 01:50 PM EST

Cate Blanchett has no issue sinking into her roles with new voices, accents, and vocal ticks to bring them to life, but she gave The Tonight Show audience a rare treat in revealing how her voice actually sounds. She just needed Jimmy Fallon’s help.

The Carol actress played Lip Flip with Fallon on Monday’s episode of The Tonight Show Starring Jimmy Fallon. She kept Fallon on his toes, mugging for the camera as he gave her a host of different voices. And Blanchett, unsurprisingly, gives a stellar performance as Fallon, including what may be one of the rare opportunities to hear the Oscar-winning actress burp on command.

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Watch the two trade mouths and attempt to harmonize on a rendition of Peaches and Herb’s “Reunited” below.