Jimmy Fallon And Tina Fey Swap Mouths. The Result Is Both Bizarre And Hilarious. (VIDEO)

WATCH: Jimmy Fallon And Tina Fey Swap Mouths. It's As Great As It Sounds.

The only thing better than Jimmy Fallon and Tina Fey interviewing each other?

Jimmy Fallon and Tina Fey interviewing each other in a 'lip swap'.

And the only thing better than that?

Them proceeding to sing a duet of 'Endless Love' with their swapped lips.

Watch and enjoy, friends. Watch and enjoy.