The Hot Pursuit co-stars used the Dubstep app to record versions of Taylor Swift song "Trouble" and Miley Cyrus hit "Party in the U.S.A." Witherspoon brought the sass, while Vergara came off a bit shrill.
The two women appear to have become close friends and often share photos together on Instagram. The pair are currently on the road to promote Hot Pursuit, which opens in theaters May 8.
Hot Pursuit is directed by noted choreographer Anne Fletcher. The movie stars Witherspoon as an earnest police officer who goes on the run with a witness (Vergara) after a drug dealer frames and threatens to kill them.