Nicole Kidman – Nicole Kidman leaves a birthday party with her family in Hollywood.
Arnold Schwarzenegger – Arnold Schwarzenegger rides on his motorcycle in Los Angeles.
Kate Walsh, Chris Case – Kate Walsh and Chris Case arrive in Los Angeles.
Ashley Tisdale – Ashley Tisdale dines in Studio City.
Michael J. Fox – Michael J. Fox spends his vacation in St. Barts with his wife.
Katy Perry – Katy Perry attends the Super Bowl XLVI in Indianapolis.
Chris Hemsworth – Chris Hemsworth and his wife, Elsa Pataky, attend the World Sports Awards 2012 in London.
Leighton Meester – Leighton Meester films a "Gossip Girl" scene in New York City.
Maria Menounos – Maria Menounos and Maria Lopez host "Extra," with Menounos making good on her bet by dressing in a New York Giants bikini.
Carmen Electra – Carme Electra attends the "Britain's Got Talent" auditions in London
Eva Longoria – Eva Longoria arrives in Los Angeles.
Channing Tatum, Jenna Dewan – Channing Tatum and his wife Jenna Dewan leave their hotel in New York City.
Sarah Michelle Gellar – Sarah Michelle Gellar visits "The Late Show with David Letterman" in New York City.
Debra Messing – Debra Messing visits "Live with Kelly" in New York City.
Taylor Armstrong – Taylor Armstrong leaves her hotel in New York City.
Rihanna – Rihanna leaves a club in Hollywood.
Steve Martin – Steve Martin roams around Beverly Hills.
Eli Manning – Eli Manning visits "The Late Show with David Letterman" in New York City.
Rachel McAdams – Rachel McAdams attends the premiere of "The Vow" in Los Angeles.
Victoria Beckham – Victoria Beckham catches a flight from Los Angeles.
Ashley Tisdale – Ashley Tisdale goes shopping in West Hollywood.
Olivier Martinez – Olivier Martinez grabs lunch in West Hollywood.
Liv Tyler – Liv Tyler goes out in New York City.
Sharon Osbourne – Sharon Osbourne visits "Extra" in Los Angeles.
Damon Wayans Jr. – Damon Wayans Jr. visits "Jimmy Kimmel Live" in Los Angeles.
Heidi Klum – Heidi Klum catches a flight from Los Angeles.
Tara Reid – Tara Reid leaves a club in Hollywood.
Joaquin Phoeniz – Joaquin Phoenix studies a script as he filsm a movie in New York City.
Amy Poehler – Amy Poehler leaves a salon in Beverly Hills.
Julianne Hough – Julianne Hough leaves a studio in Toluca Lake.
Andie MacDowell – Andie MacDowell carries some boxes as she leaves a hotel in New York City.
Ryan Reynolds – Ryan Reynolds visits "The Late Show with David Letterman."
Kevin Jonas – Kevin Jonas picks up his brother from school in Los Angeles.
Kate Walsh – Kate Walsh goes to a pharmacy in Beverly Hills.
Gwen Stefani – Gwen Stefani dines in Santa Monica.
Eva Longoria – Eva Longoria leaves a salon in Beverly Hills.
Miranda Cosgrove – Miranda Cosgrove roams around Hollywood.
Ali Larter – Ali Larter roams around Beverly Hills.
Melissa McCarthy – Melissa McCarthy attends pilates class in Studio City,
Jennifer Garner – Jennifer Garner grabs an iced beverage with a friend in Santa Monica.
Kate Winslet – Kate Winslet attends a film event in New York City.
Ciara – Ciara takes her dogs to the salon in Los Angeles.
David Spade – David Spade visist "The Late Show with David Letterman" in New York City.
Halle Berry – Halle Berry roams around Los Angeles on her crutches.
Reese Witherspoon – Reese Witherspoon leaves her office in Brentwood.
Heidi Klum – Heidi Klum arrives in Los Angeles.
George Clooney – George Clooney and Stacy Keibler dine in West Hollywood.
Adam Sandler – Adam Sandler walks his dog in Malibu.
Nicky Hilton – Nicky Hilton roams around New York City.
Hilary Duff – Hilary Duff attends a meeting in Beverly Hills.