James Corden has been trailing his latest installment of Carpool Karaoke all week with the episode airing last night, July 20. First Lady Michelle Obama was his guest and she spoke to The Late Late Show host about life in the White House, including how you get assigned a code name by the secret service. However, once the musical part of the show came around they were joined by a special guest. Missy Elliott performed Obama's All-Star Anthem "This Is For My Girls" as well as "Get Ur Freak On." Check out the clip above.