The Mary Jane Girls were an American R&B, soul, funk, disco, and pop group in the 1980s.
They were protégées of singer Rick James.
The group consisted of four female members: Joanne "Jojo" McDuffie, Candice "Candi" Ghant, Kim "Maxi" Wuletich, and Ann "Cheri" Bailey. McDuffie, a backup singer for James, was the first member of the group. McDuffie (lead vocalist) and well known background vocalists Maxine and Julie Waters were responsible for creating the Mary Jane Girls sound.
They are best known for the pop smash "In My House" and the funk classic "All Night Long".