Remember when The Simple Life ended and Paris Hilton and Nicole Richie were no longer the best of mates?Heartbreaking. Well, clearly they've buried the hatchet deep in their Prada bags, because look what we spied at Art Basel in Miami: both of our fave blondes partying it up with man-about-town/ formidable fashion editor Derek Blasberg. We know they're busy with their own empires and stuff, but who else thinks it's time for them to ditch Hollywood, return to the farm and deliver pearls of wisdom like, 'If you don't even know what to say, just be like, "That's hot.''' Pure. Genius.