ACTUALLY I used this as an opener for awhile. "Hey, quick question: what do you think was the best 7th grade slow dance song?" Talk about the awkwardness of 7th grade romance and awful lyrics and desperate young love, etc. It's universally applicable to any girl who was in 7th grade in the past 10-12 years, plus you can get some of the more common ones and make a playlist on your iPod - girls always go crazy for my "7th Grade Slow Dance" playlist.
Incidentally, 70 or so girls have told me that "Back At One" by Brian McKnight was the best slow dance song ever. I personally like "Steppin' Out (Late Night Alumni Slow Dance)" by Kaskade.