In Los Angeles Mariah Carey attended the 12th Annual BMI Urban Awards, while Alicia Keys was one of many celebrities to take part in Stand Up to Cancer, a fundraising event held at the Shrine Auditorium. Nicole Richie was also in town gracing the red carpet for a celebration of Macy's.
Emma Watson and Vanessa Hudgens were both present at the Toronto International Film Festival. Hudgens dressed in an off-the-shoulder gown for the premiere of her new film Spring Breakers.
Season two of Homeland received its premiere in New York. Cast members Damian Lewis and Claire Danes both viewed the first episode of the new season. Also in the Big Apple, Ricky Martin looked suave as he visited the new Emporio Armani flagship store.
And in London, Sir Richard Branson embraced the Olympic fever and posed with Mo Farah at the Impatience Is a Virtue Festival.
See all of these pictures in our gallery below.