First Lady Michelle Obama joined James Corden for some Carpool Karaoke on The Late Late Show on Wednesday night. While driving around the White House grounds, singing Beyoncé's 'Single Ladies,' Stevie Wonder's 'Signed, Sealed, Delivered' and the First Lady's own song, 'This Is for My Girls,' they were then joined by Missy Elliott, who jumped in the back to perform 'Get UR Freak On.' Watch below.