Paula Jean Brown (who took Jane Wiedlin's spot in the band just before it broke up) co-wrote the song with Jim Whelan, and Wiedlin and Charlotte Caffey sang back-up vocals. "Mad About You" was one of a few songs being considered for the fourth (unrecorded) Go-Go's album. The Go-Go's split and "Mad About You" and two other songs co-written by Paula Jean Brown ended up on Belinda.
The single's B-side, "I Never Wanted a Rich Man", was also featured on Carlisle's first long playing work (it closed Side 1 on the vinyl edition). The extended version of "Mad About You", originally on the A-side of the 12" single, was then included on the album compact disc re-release by Virgin in 2003.
The song is written in the key of A major in common time with a tempo of 144 beats per minute. Part of the appeal of the song's chorus lies in the rapid-fire kick drum double stroke pattern on every bar, performed using either a single or double bass pedal.