This is Spinal Tap.
Rocky Horror Picture Show.
The Wall (actually an adult cartoon to music)
Quadrophenia (The Who)
Heavy Metal
I would even almost count Almost Famous as a musical.
(there are probably more, I just can't remember them right now)
Try some of those and see if you change your mind.
You're just looking for the cutsie musicals that all the women like.
Music Man
Sound of Music
Oklahoma
Wizard of OZ
etc.