Best Celebrity Pictures of Jessica Marais' Baby, Katy Perry in Black Bikini, Kristen and Rob at Teen Choice

The biggest celebrity news story to break in the last week was undoubtedly the cheating scandal that has rocked Kristen Stewart and Robert Pattinson. Kristen was caught cheating on Rob with her Snow White and the Huntsman director Rupert Sanders, and just days before the story leaked she was at the Teen Choice Awards with her on- and off-screen Twilight boyfriend. In other A-list outings, it was a big week for Hollywood babies! Jessica Marais and James Stewart hit the shops with two-month-old Scout, while 1-year-old Harper Beckham enjoyed a London lunch with mum Victoria and dad David. Katy Perry also made the most of a sunny Miami holiday, lounging poolside in a black bikini. There were plenty more screenings, parties and baby-filled strolls — step inside to see them all.