Christina Aguilera pranks donut customers in Kimmel's "Undercover Sing"

You want a donut. You switch to the store. "Genie In a Bottle" Christina Aguilera plays through the speakers. But wait, are these words talking about you?

For a new segment titled "Undercover Sing", the pop monarch herself has allied with late-comer Jimmy Kimmel. Task? Serenade unsuspecting customers in a Los Angeles donut shop. And it's delicious.

Looks like Kimmel really wants his own singing segment like James Corden's "Carpool Karaoke" or Jimmy Fallon's "Lip Sync Battle". We are in it. Donuts all around.