Fictional Bands, Real Records by AlexanderD

Question 7

It was originally recorded in 1983 by Laura Branigan. It was covered in 1989 by its co-writer. The gang on "Saved by the Bell", performing as "The Zack Attack", sang it on the season 3 premiere when Zack & Kelly broke up. Name the song.

How Am I Supposed to Live Without You?