Britney Spears joined James Corden's "Carpool Karaoke" last night for a fun, career-spanning medley of songs. The superstar sang "Toxic," "...Baby One More Time," "Oops!...I Did It Again," "Womanizer" and "Make Me...," the lead single from her new album Glory. 

Highlights included Corden re-enacting the iconic scene from her "Oops!...I Did It Again" video, in which he gifted her a pen, and the two dressed in schoolgirl outfits for her 1998 breakout hit "Baby One More Time." 

Spears, a mother to two boys, also told Corden that she wants three more kids — but she's done with marrying men.

Watch the video below.