Watch James Corden Talk Moms in Underwear and Sing Toxic With Britney Spears

James Corden on Tuesday teased a short clip of his “Carpool Karaoke” ride with Britney Spears, in which the Late Late Show host talks about seeing his mother in her underwear for the first time.

Spears — who is about to release her new album, Glory — sings Toxic with Corden during the car ride. Corden also asks the Make Me singer about her two sons and if they’ve ever watched her perform in Las Vegas. The topic prompts Corden to tell Spears about the time he saw his mom in her underwear when he was about 11.

“I can’t shake the image from my brain,” he says.

The segment airs Thursday. Watch the clip above.