Actress, singer, and now author Hilary Duff signs autographs while looking gorgeous at a New York Borders Bookstore.

Steve Carrell and Russell Brand get chummy in London at the UK premiere of “Despicable Me!”

This guy is definitely hungry! Nick Jonas grabs some takeout in Los Angeles.

Sarah Jessica Parker greets a friend before the girls head off to lunch in NYC’s West Village.

Bruce Willis and his eldest daughter Rumor hamed it up at the LA premiere of his upcoming action/comedy “RED”!

LA Laker Ron Artest gets honored with a key to the city of Las Vegas and a proclamation of ‘Ron Artest Day’!

Kate Walsh tousles her hair around at the opening night of the Broadway production ‘David Mamet A Life In the Theatre’ in NYC.

Cooler Than Me singer Mike Posner and Housewife of NYC Bethenny Frankel get cozy as Sony and Google unveil the world’s first internet television at Espace in NYC.

Ali Fedowtowsky was a babe in blue for the JCPenney launch of MNG by Mango in New York City.

Bieber brought the fever back to Japan, greeting fans at the Tokyo Dome City LaQua Garden!

Hayley Williams of Paramore rocks out while performing in Australia at the Entertainment Centre!

Hilary Swank shows off her fit physique as she heads to the Cinema Society & Laura Mercier screening of “Conviction” at the Tribeca Grand Hotel in NYC.

Say cheese! Katherine Heigl and Josh Kelley smile big while out and about in Los Angeles.

Baby Mason and his momma, Kourtney Kardashian step out in NYC!

A cheerful Julia Roberts grabs some toys at a Pacific Palisades pet supply store!

Harry Hamlin and Lisa Rinna promote their new books, ‘Starlit’ and ‘Full Frontal Nudity’ at Barnes & Noble in LA at The Grove.

Demi Lovato and Taio Cruz were on hand to announce the nominees for the America Music Awards.

Gal pals Alicia Silverstone and Alanis Morissette head to Urth Cafe for a bite after doing some shopping in West Hollywood.

Jennifer Garner and he little ballerina Violet head to ballet class in Santa Monica!

Ashlee Simpson heads to her NYC hotel with her son Bronx and a super cute new do!

Stone Temple Pilots frontman Scott Weiland dressed smart for a show at South Florida’s Seminole Hard Rock Hotel and Casino.

Jon Gosselin totes a tired little guy to the car after school!

Kellan Lutz threw on a suit for the ESPN Magazine Body Event at Skylight SOHO in NYC!

British babes Carey Mulligan and Keira Knightley attend a photocall for their new flick “Never Let Me Go” in London at the 54th BFI London Film Festival.

Did Stephanie Pratt treat herself to a piece of jewelry? The blonde beauty was spotted in Beverly Hills carrying a Tacori bag.

Mark Ballas is all smiles as he heads out for a night on the town after his DWTS performance!

Rosario Dawson and her longtime love Mathieu Schreyer take a romantic stroll on the beach in Santa Monica.

Strolling through the city, Hugh Jackman and Deborra-Lee Furness head home after dropping the kids off at school.

Derek Hough launches Doctrine clothing at Boudior in Hollywood with the help of pal Cheryl Burke.

Designer Lauren Bush chats with her grandparents former President George Bush and former First Lady Barbara Bush at an Audi Presents Fashion Houston 2010 event on Tuesday.

Anne Heche and James Tupper attend the launch of MNG by Mango at JCPenney

Fringed and funky, Sheryl Crow takes to the stage at London’s Hammersmith Apollo!

Young loves Ashley Greene and Joe Jonas arrive to Katsuya in Hollywood for a romantic dinner for two.

Alicia Keys flaunts her baby bump while strolling around the Soho section of New York City.

‘True Blood’s’ hunky werewolf Joe Manganiello and his gorgeous girl Audra Marie arrive to the Puma Social Club launch in Los Angeles.

Andrew Garfield, Carey Mulligan, and Keira Knightley attend the UK premiere of their new film “Never Let Me Go,” held during the 54th BFI London Film Festival.

Funny girl Molly Shannon arrives for her Broadway debut in the revival of ‘Promises, Promises’.