From the Disney TV movie Rock 'n' Roll Mom (1988).
Suburban mom Annie Hackett (Dyan Cannon) sings on the side, and comes to the attention of record execs. She records a demo version of one of her songs, after Darcy X (Heather Locklear), the temperamental star who was supposed to do it, leaves in a huff. Annie's version becomes a hit! But, naturally, Annie can't go onstage looking like that, and being a mom and all. A sexed-up artificial image is created for. Hang your head in shame, America! That you should make an honest woman stoop so low! Shame, I say! Anyhoo, this made for TV movie also stars a pre-The Nanny Fran Drescher.