"Uncool" indeed. You shouldn't avoid listening to music just because others wouldn't approve. But yeah.
For me, it's the Scarface OST.
Full of 80s pop which I love, but a man, should he be caught listening to those songs, will have certain accusations thrown at his sexuality. Songs like "She's On Fire" by Amy Holland, and "I'm Hot Tonight" and "Shake It Up", both by Elizabeth Daily, make absolutely certain of this. But I absolutely love them, and will gladly suffer the consequences for it.