I have no time for the idea of music as a 'guilty pleasure' - if you like some music, what's to be 'guilty' about?
I speak as someone who thinks 'Saturday Night' by Whigfield is one of the finest pop singles ever released, and I adore almost all Euro-pop.
The idea that I would care enough about other peoples' opinions of me based in their opinions of my taste in music is frankly not worthy of consideration.
Like what you like, and be proud of your passion.
BTW, Hot Chocolate are an excellent band with a string of great singles.