BRAND NEW ON E!
Like us, Jimmy Kimmel has trouble telling "How is Paris Hilton on vacation different from Paris Hilton not on vacation?" since in either case she's prone to partying semi-scandalously. But in a zesty bit of late-night comedy, Jimmy was able to clearly differentiate between the hotel heiress's French Riviera frolicking and a typical American family on a vacation.
Can you guess who was diving off yachts and swilling Cristal in Saint-Tropez and who was sweltering in the backseat of a non-descript sedan? Check out Jimmy's vacation-snapshot comparison in the video above to validate your instincts.
See how other stars are simmering and summering in our Famous Families on Vacation gallery.