Wednesday, Michelle Obama's "Carpool Karaoke" joyride with James Corden will air on the late-night host's CBS show. The first lady and Corden sing "This Is For My Girls," described as a "girl power anthem" intended to promote full access to education worldwide. The song was written by Grammy-winner Diane Warren and includes artists Kelly Clarkson, Missy Elliott, Janelle Monae, Kelly Rowland, Lea Michele and Zendaya.