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

BRIGHT SMILE

Someone's in a good mood! Amanda Seyfried shows off her pearly whites during an appearance on British talk show Lorraine Tuesday in London, where she promoted her latest film, Lovelace.