Shania Twain's entire discography is a guilty pleasure of mine. I also like a few Pop Evil songs. Don't judge me y'all :$
The MCR hits album, May Death never Stop You, Rihanna's We Found Love, JT's Mirrors and Bruno Mars's Locked Out of Heaven.
K-pop. Not a guilty pleasure for many, but not something one would expect me to like (and if my rock-loving family knew...).
The Cardigans - Lovefool Beyoncé - Partition RuPaul - Jealous of my boogie I know all the words to them as well...