"Don't You Forget It" is an R&B song by Glenn Lewis, released in November 2001.

Produced by Andre Harris, it was the first single from his debut album, World Outside My Window.

[2] The song's music video was directed by Chris Robinson.

[3] It features Lewis singing in a room, surrounded by vinyl records of R&B/soul singers of the past.

Actress Kent King plays his love interest in the video.