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Watch: Demi Lovato and James Corden Have a Hilarious "Diva-Off"

You've heard of a dance-off. You know about lip sync battles. But have you heard of a diva-off?

Demi Lovato and James Corden engaged in a heated battle of the divas during a recent episode of Corden's show, and it was absolutely hilarious.

Each took turns belting out classic songs from famous divas, with plenty of smack talk in between. Corden would deliver a rousing rendition of a Tina Turner tune, then Lovato would counter with Katy Perry's "Roar."

Finally, Corden turned up the heat, noting that Lovato had only been singing other people's songs, which inspired her to belt out her own hit "Heart Attack."

The two wrapped up with some next-level insults, which included a mic drop, before they did a show-stopping "I Will Survive" duet. If you're in need of a laugh, it's definitely worth a watch:

Divas Riff-Off w/ Demi Lovato

When Demi Lovato takes exception to James Corden's claim that divas such as Cher, Aretha and Tina Turner are more fierce than today's divas, and the two decide to settle it in a Riff-Off featuring songs from Adele and Katy Perry, with some backing vocals from Level.