Celebrity photos of the week: Katie Holmes, Lady Gaga, Chris Pratt and more

Lady Gaga helped her good friend Tony Bennett celebrate his 90th birthday at the Empire State Building in New York.
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Katie Holmes and daughter Suri were all smiles after catching a production of Finding Neverland at the Lunt Fontanne Theatre on Broadway. The beautiful 10-year-old is looking more and more like her famous father Tom Cruise.
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Chris Pratt and son Jack rode alongside Anna Faris at this year's Seafair Torchlight Parade in Seattle. The Mom star was given grand marshal status at the annual bash.
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Legendary singer Barbra Streisand blew the roof off the Staples Center on Aug. 2. The Oscar winner is currently on tour with her Barbra - The Music... The Mem'ries... The Magic! show.
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Mariah Carey put on a show at a press conference for her new reality show Mariah's World.
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Southern belle Reese Witherspoon let her love for Dolly Parton shine during a shopping outing in Los Angeles.
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Suicide Squad members Cara Delevingne and Margot Robbie put the finishing touches on a mural by local London graffiti artist Ryan Meades ahead of the film's release on Aug. 5.
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Cheryl Hines and Jennifer Garner shared a happy reunion on the red carpet at the premiere of their new family flick Nine Lives.
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