"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.

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