Who says you're too old to watch cartoons on weekends? On Saturday mornings we'll serve you up a cartoon or two to watch while you're enjoying cereal in pajamas. This first episode of Jem originally aired in 1985.
Episode Description via IMDb:
Following the death of her father and the the takeover of his record company by the corrupt Eric Raymond, Jerrica Benton discovers the computer Synergy, which gives her the ability to turn into the rock star, Jem!