He's had everyone from Justin Bieber to Adele on his program, and now James Corden has enlisted Britney Spears for the latest segment of The Late Late Show's Carpool Karaoke.

The whole thing doesn't air until Thursday, but a lengthy promo was released on Tuesday, which shows the two singing along to Brit Brit's 2003 hit "Toxic," along with their conversation during the drive. "Thank you for helping me get to work — this traffic is just gridlocked," James joked with the pop star.

James then asked Britney about her sons Sean and Jayden, asking if they've seen her Las Vegas concert series. You know, the show where she takes the stage in all sorts of skimpy and super sexy outfits. Brit admitted that they have, to which James replied, "I saw my mum in her underwear once when I was, like, 11." Brit Brit called the host "dirty," but seemed to take it in stride.

Brit has been blowing up this month, as her latest album, Glory, will be released on Friday. Then she'll give the world premiere performance of her single "Make Me…" at the MTV Video Music Awards on Sunday, August 28. We can't wait!