Cavallari gets a paw, er, hand, from pup Bardot at an event in Las Vegas. Plus: Josh Duhamel & Fergie, Mario Lopez & Mike Tyson, Taylor Swift and more

STEPPING OUT

It's hard to say which is cuter: Kristin Cavallari's dog Bardot or her Chinese Laundry shoe collection, which she promotes Tuesday at Magic Market Week in Las Vegas.