Watch Lady Gaga Ra-Ra-Roll Into Carpool Karaoke

Gaga, dressed in a disco ball-shiny dress with a bow so big it would make Melania Trump envious, harmonized with Corden on old favorites like "Poker Face" and "Born This Way," and put on a pink cowboy hat for her country-influenced ballad "Million Reasons" from her new album Joanne.

Comedy bits included Gaga, who just got her driver's license at age 30, taking the wheel as Corden dons a motorcycle helmet, and Corden trying on some of Gaga's most famous looks, including an inspired take on the meat dress.

Shout out to James Corden's lyric memorization skills.