"Back Up" is a song recorded by American rapper Dej Loaf, featuring American rapper Big Sean.

It was released by Columbia Records on July 15, 2015,[1] as the first single from Loaf's debut EP ...And See That's the Thing (2015).

The song was written by Dej Loaf, Big Sean, Clenton Gosberry and Kyle Adams; the latter also produced the song under the pseudonym iRocksays.

[2] A music video, directed by Alex Nazari, was filmed at Detroit's Royal Skate Land.

[3] "Back Up" debuted at number 83 on the US Billboard Hot 100 for the chart dated October 24, 2015.