Celebrity photos of the week: Gwen and Blake's date night, Renée steps out in Sydney

Click through for the week's most memorable celebrity pictures...
<i>Bridget Jones's Baby</i>'s leading lady Renée Zellweger giggled her way through a photo call with co-star Patrick Dempsey at Sydney Harbour. <br>Photo: © Getty Images
Blake Shelton and Gwen Stefani made a date night out of the Apollo in the Hamptons event at The Creeks in East Hampton. <br>Photo: © Getty Images
Canada's Michael Bublé launched his new fragrance with a show at the Edison Ballroom in New York. <br>Photo: © Getty Images
This week, Jessica Alba dropped by the SiriusXM studios in New York City. The actress is busy promoting her new film <i>Mechanic: Resurrection</i>. <br>Photo: © Getty Images
Kate Mara and boyfriend Jamie Bell made one adorable couple as they watched the home team take on the San Francisco Giants at Dodger Stadium. <br>Photo: © Getty Images
Despite her rumoured split from boyfriend Casper Smart, Jennifer Lopez had a sweet time at the Apollo in the Hamptons event on Aug. 20. <br>Photo: © Getty Images
Dad of three Chris Hemsworth took a break from filming the latest <i>Thor</i> film to greet mini <i>Avengers</i> fans in Brisbane, Australia. <br>Photo: © Getty Images
Twinning couple Beyoncé and Jay Z hung out with Robert De Niro and his wife Grace Hightower at the New York premiere of <i>Hands of Stone</i>. <br>Photo: © Shutterstock
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