Tina Fey + Jimmy Fallon Swap Lips in the Most Terrifying Bit Ever - VIDEO

Jimmy Fallon interviewed Tina Fey on The Tonight Show last night (March 3) but what Fey really wanted to do was interview herself. Enter the Lip Flip sketch.

You may not be able to sleep tonight, but that's a risk you should be willing to take because this bit is equal parts funny and terrifying.

Using the magic of technology, the pair had each other's lips super-imposed on one another and then proceeded to do terrible imitations of each other.

Side note: Jimmy Fallon can't even keep a straight face when it's on Tina Fey's.

Before coming together to duet "Engless Love." Albeit as each other.

We're crying because it's beautiful. Also because we're so so scared right now.