"Best Mistake" is a song by American recording artist Ariana Grande that features American hip hop recording artist Big Sean. The song served as a promotional single from Grande's second studio album, My Everything (2014), and was released at midnight on August 12, 2014. Written by Denisia "Blu June" Andrews, Brittany Coney, Grande, Big Sean, and produced by Key Wane, the song is a ballad with piano, string, and drum machine instrumentation that lyrically deals with a couple trying to decide on what their future, troubled relationship is going to be like. Grande has claimed it is her favorite track off My Everything.