5:3666 is a track on Hotel Diablo, MGK’s 4th studio album and was the first snippet to be shared from it. The track features phem. This is the first time the two artists have collaborated.

After the track was first previewed on the 2nd of April, 2019 in an album promotional video, it was also later teased by MGK’s producer and friend, SilmXX, in an Instagram story where “5:3666” can be seen on the car’s dashboard player.

The songs finds MGK unable to sleep as he battles his inner demons and problems from his addiction with cocaine to family who are taking advantage of his success. As he has done previously on songs such as “Lead You On” & “Habits,” here too, MGK personifies cocaine as a woman.