Next up in James Corden's popular "Carpool Karaoke" series is none other than the BIGGEST pop star ever, Britney Spears. The full thing will be out Thursday, but so far we have a preview in which she sings (and dances!) along to "Toxic."
Crossing our fingers there'll be some "Baby One More Time"...and "Lucky"...and "Womanizer"... JUST IMAGINE THE POSSIBILITIES!