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Something about this reminds me of Rock of Ages, but I can't remember for certain if any of this is actually in it.
Definitely not the Rock of Ages stage musical ('Hit Me With Your Best Shot' was performed by a German real estate apprentice and an American community activist in c. 1980's workout gear) - but the 2012 film adaptation had a musical number featuring religiously conservative women singing 'Hit Me With Your Best Shot' in a church. Also the main guy's name is 'Drew Boley,'
Thanks!
Live action film/musical about a guy who's performing and his girlfriend and they're alternating between mushiness and angst (or something) and there's one scene where another girl is telling Girlfirend that when Boyfriend gets up on stage he will forget all about her and go after other people. There is also a scene where a bunch housewifey women sing (or at least lipsync) to 'Hit Me With Your Best Shot', and part of the number is them singing the song in church and part of it is them beating their husbands.One of the main character's names began with a D.