"Back & Forth" is the debut single by Aaliyah, featured on her debut album Age Ain't Nothing but a Number. The song, written and produced by R. Kelly, expresses a teenage girl's excitement to have fun over the weekend by going to a party and interacting with her friends.
The song was released as the lead single for Age Ain't Nothing but a Number on May 10, 1994.
The music video for the song featured Aaliyah and R. Kelly performing in a gym, alongside her real-life friends from high school.