"All Night Long" is a song written, arranged, and produced by American musician Rick James for the Mary Jane Girls.

In the US, the song enjoyed success on the Hot Black Singles Chart, peaking at No.

But it failed to succeed with the general public, peaking at No.

It is their only major hit on the UK Singles Chart, peaking at No.

61 on their list of the 100 Greatest Girl Group Songs of All Time.