You know, songs you might get crap for if someone caught you singing along.
Here are a random 15 guilty pleasure songs that I chose from my iPhone. In no particular order:

1) Abraham, Martin, & John – Dion (I also like the Ray Charles version)
2) All I Know – Art Garfunkel
3) The Best Day Ever – SpongeBob (Tom Kenny)
4) Shine A Little Love – Electric Light Orchestra
5) Let’s Get Retarded – Black Eyed Peas
6) Jack & Jill – Raydio
7) San Francisco Bay Blues – Ramblin’ Jack Elliot
8) Beggin’ – Madcon
9) Tubthumping – Chumbawamba
10) Insane In The Brain – Cypress Hill
11) I Think I Love You – Partridge Family
12) Spider-Man Theme – Michael Bublé
13) Love Grows (Where My Rosemary Goes) – Edison Lighthouse
14) Magic – Pilot
15) I Wanna Rock – Twisted Sister

I can come up with another 15 if you’d like.