Rihanna – Rihanna leaves her hotel in New York City.
Vanessa Hudgens – Vanessa Hudgens and Austin Butler roam around New York.
Jennifer Love Hewit – Jennifer Love Hewitt goes shopping in West Hollywood.
Miranda Kerr – Miranda Kerr roams around New York.
January Jones – January Jones drops off her dry cleaning in New York City.
Heidi Klum – Heidi Klum dines in Beverly Hills.
Pete Wentz – Pete Wentz roams around Los Angeles with his son.
Anthony Keidis – Anthony Keidis attends a basketball game in Los Angeles.
Sherri Shepherd – Sherri Shepherd attends "Dancing With the Stars" rehearsals in Hollywood.
Lily Collins – Lily Collins attends a movie premiere in Hollywood.
Marcia Cross – Marcia Cross picks up her daughters from school in Santa Monica.
Amanda Seyfried – Amanda Seyfried goes to a pet shop in Beverly Hills.
Clive Owen – Clive Owen attends a screening in New York City.
Zooey Deschanel – Zooey Deschanel films a scene for "New Girl" in Los Angeles.
Beyonce – Beyonce and Jay-Z leave a restaurant in New York City.
Jessica Alba – Jessica Alba picks up a portrait in Santa Monica.
Nicole Richie – Nicole Richie arrives in Miami.
Hugh Grant – Hugh Grant visits the BBC Radio 1 studios in London.
Cat Deeley – Cat Deeley catches a flight from London.
Kim Kardashian – Kim Kardashian leaves her home in Calabasas.
Josh Hutcherson – Josh Hutcherson visits "The Late Show with David Letterman" in New York City.
Christina Hendricks – Christina Hendricks roams around New York City.
Naomi Watts – Naomi Watts leaves her house in Sydney.
Katie Holmes – Katie Holmes leaves her New York City apartment.
Katy Perry – Katy Perry goes to a club in Paris.
Gerard Butler – Gerard Butler goes to The Grove with his parents in Los Angeles.
Ed Westwick – Ed Westwick films a scene for "Gossip Girl" in New York City.
Mischa Barton – Mischa Barton dines in Hollywood.
Selma Blair – Selma Blair roams around Los Angeles with her son Arthur.
Reese Witherspoon – Reese Witherspoon leaves a friend's house in Brentwood.
Emma Roberts – Emma Roberts roams around New York City.
Jessica Alba – Jessica Alba goes to the park in Beverly Hills.
Helen Hunt – Helen Hunt runs errands in Santa Monica.
Katherine Heigl – Katherine Heigl grabs lunch with her mother in Beverly Hills.
Emily Blunt – Emily Blunt picks up lunch after going to the gym in West Hollywood.
Rihanna – Rihanna dines in Santa Monica.
Nicole "Snooki" Polizzi – Nicole "Snooki" Polizzi films a scene for her TV show in Jersey City.
Chris O'Donnell – Chris O'Donnell roams around Beverly Hills.
January Jones – January Jones roams around New York City.
Gwen Stefani – Gwen Stefani roams around Los Angeles with her husband Gavin Rossdale.
Keri Russell – Keri Russell goes shopping in New York City.
Khloe Kardashian – Khloe Kardashian arrives in Los Angeles.
Katie Holmes – Katie Holmes leaves a Broadway show with her mother in New York City.
Alexander Ludwig – Alexander Ludwig arrives in Los Angeles.
Fergie – Fergie leaves the NBC studios in New York City.
Matthew Morrison – Matthew Morrison leaves a restaurant in Hollywood.
Victoria Beckham – Victoria Beckham goes shopping in West Hollywood.
Alessandra Ambrosio – Alessandra Ambrosio roams around Santa Monica with her daughter Anja.
Christina Milian – Christina Milian arrives at Greystone Manor in Beverly Hills.
Kim Kardashian – Kim Kardashian attends a meeting in Hollywood.