The kids created the greatest music mash-up today. I'm listening to Nine Inch Nails' "Head Like A Hole" on the radio, it's older but it reminds me of skateboarders and Summerfest in 1991 and fun days and warm weather. So I like it, and Trent Reznor is singing "No, you can't take it!" and all of a sudden two voices from the back seat start singing, "Shake Shake Shake… Shake Shake Shake… Shake Your BOOT-AY!"
It went pretty well together. When the NIN song ended, so did the impromptu chorus.
Go figure.