... the ones you absolutely love/loved but too ashamed to admit having.
Back in 79 I was given Carpenters 'Passage' album. Must've had it 20 years before confessing to friends. Likewise I purchased Abba: The Album. I would deny ever owning these as I was a Mod, into The Jam, Lambrettas, Dexy's, Squeeze etc etc., and having Abba and Carpenter albums would make you the local leper.
Let's hear yours.