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

Click through for the week's most memorable celebrity pictures...
Lady Gaga helped her good friend Tony Bennett celebrate his 90th birthday at the Empire State Building in New York. <br>Photo: © Getty Images
Katie Holmes and daughter Suri were all smiles after catching a production of <i>Finding Neverland</i> at the Lunt Fontanne Theatre on Broadway. The beautiful 10-year-old is looking more and more like her famous father Tom Cruise. <br>Photo: © Getty Images
Chris Pratt and son Jack rode alongside Anna Faris at this year's Seafair Torchlight Parade in Seattle. The <i>Mom</i> star was given grand marshal status at the annual bash. <br>Photo: © Getty Images
Legendary singer Barbra Streisand blew the roof off the Staples Center on Aug. 2. The Oscar winner is currently on tour with her <i>Barbra - The Music... The Mem'ries... The Magic!</i> show. <br>Photo: © Getty Images
Mariah Carey put on a show at a press conference for her new reality show <i>Mariah's World</i>. <br>Photo: © Getty Images
Southern belle Reese Witherspoon let her love for Dolly Parton shine during a shopping outing in Los Angeles. <br>Photo: © Getty Images
<i>Suicide Squad</i> 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. <br>Photo: © Getty Images
Cheryl Hines and Jennifer Garner shared a happy reunion on the red carpet at the premiere of their new family flick <i>Nine Lives</i>. <br>Photo: © Getty Images
Justin Timberlake clowned around with comedian Keegan-Michael Key at the 2016 Teen Choice Awards. The GRAMMY-winning singer played host at the show. <br>Photo: © Getty Images
Eco-friendly Leonardo DiCaprio opted for green transportation to cruise around New York City. <br>Photo: © Getty Images
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