Star photos: Best celebrity pictures of the week

Candid camera! Whether taking selfies, sharing a laugh or hitting up some of the hottest events around - the biggest names in Hollywood always carry on looking exceptionally good. Check out the best celebrity photos of the week from your favorite stars. Diane Keaton was joined by her kids Dexter and Duke at the premiere of Book Club in L.A. Her kids now 23 and 18 respectively were all smiles alongside their mom. Photo: Getty Images

This is one Book Club we want to join! Mary Steenburgen, Jane Fonda, Candice Bergen and Diane Keaton coordinated on the carpet of their Paramount Pictures film premiere. Photo: Getty Images

Adele's heart will go on! Channeling Kate Winslet's Rose character, the singer turned 30 on May 5 with an epic Titanic-themed birthday party. Photo: Instagram/@adele

"Dirty 30!" she wrote on Instagram along with the pics. "I’m not sure what I’m going to do for the next 30 years as I’ve been blessed beyond words in my life so far. Thank you to everyone for coming along for the ride the last 11 years with me. My family and friends for entertaining my super fandom of the Titanic movie. Last night was the best night of my life. Here’s a couple pics. I’m absolutely fucked, not sure I’ll make it out the house again!" She added: "Ps Childish Gambino how the hell do you have time to offer us so much greatness on so many platforms. I adore you x." Photo: Instagram/@adele

Kate Upton was a model-on-the- go running errands in NYC pre-Met Gala with her High Brew Coffee in one hand and her phone in the other. Photo: Tom McGovern Photography

Stephen Amell, who attended with his wife Cassandra Jean, was surprised with a birthday cake and engraved bottle of Gran Patron at the Fillies and Stallions party in Louisville, Kentucky. Photo: Getty Images

Taylor Swift invited 2,000 foster kids and their families to a final dress rehearsal for her Reputation Stadium Tour on May 5. The 28-year-old singer treated the group to a sneak peek of her show, and, to make it even sweeter, took the time to have a meet and greet with everyone who came! She posed for pictures, gave autographs, and even bought them pizza. “I have to say too that @taylorswift13 not only sang for two hours but tried to give every single person hugs with big smiles. Crazy how genuinely she cares for everyone and it shows. #reputationtour,” one fan wrote on Twitter. Photo: Twitter/@tramken

Kentucky Derby! Taylor Kitsch posed with a Ram 2500 Heavy Duty Truck in Louisville, Kentucky on Saturday, May 5, while attending the big race. Photo: Daniel Boczarski/Ram

Dylan Lauren and Nicky Hilton Rothschild were among the fabulous attendees at the alice + olivia by Stacey Bendet limited-edition capsule collection with Donald Robertson party on May 5. The showroom, which overlooked the Highline, was transformed into an #AOXDONALD wonderland. Photo: BFA

She's taken! Lea Michele flaunted her gorgeous engagement ring, from Zandy Reich, as she walked the carpet at the 29th Annual GLAAD Media Awards in NYC. While attending the Hilton Midtown located event, the star looked stunning in a black and silver gown. Photo: © Getty Images

Date night! Kourtney Kardashian stepped out with her man Younes Bendjima for The Syrian American Medical Society hosts the Voices in Displacement Gala at Riviera 31 at Sofitel in L.A. on May 4. The reality star showed off her tight tummy in a sleek black number. The couple stayed until the very end of the event. They were very affectionate throughout the night, sitting in the VIP section together. The pair listend to Amber Heard share her experience having recently returned from a medical mission to Jordan with SAMS. Photo: © Getty Images

Tori Kelly performed for the supporters, volunteers and families during the Project Sunshine Benefit in NYC. Photo: Steve Eichner

It's always a guarantee that celebs will spill in the Clubhouse. During his visit with Priyanka Chopra to Watch What Happens Live, Sebastian Stan revealed he had "extreme concerns" over his pal Tom Hiddleston dating Taylor Swift. “That’s an amazing question,” the Avengers: Infinity War joked to Andy Cohen. “It was one of awe and extreme concern, obsession and at the same time … I don’t know, I was really worried, mainly for him.” Photo: Charles Sykes/Bravo

Kendall Jenner's Thursday in NYC involved an outfit change. The supermodel attended the Longchamp store opening in a midi-patterned dress and boots. She switched up her look for the Tiffany & Co. Paper Flowers party and opted for a white, semi-sheer mini dress and lucite heels. Photo: Getty Images

Maddie Ziegler, Elle Fanning and Hailey Baldwin were stylin' starlets at the Tiffany & Co. launch of their latest collection Paper Flowers in NYC. Photo: BFA

Cara Delevingne and Paris Jackson stopped for photos in front of the new Longchamp store on NYC's famed Fifth Avenue. Photo: GC Images

Mandy Moore hosted the ultimate girls' night with Garnier in West Hollywood where she made this custom denim jacket perfect for the warm weather. Photo: Getty Images

Charlize Theron was rocker chic along with Ron Livingston and Mackenzie Davis at a special screening of Tully, presented by Elle, Dior, and Focus Features in NYC. Photo: Getty Images

Goop founder Gwyneth Paltrow teamed up with Cointreau to celebrate the 70th anniversary of the Original Margarita, which was created by Dallas socialite Margarita Sames in 1948 for a lunchtime soirée in Acapulco, Mexico. Photo: Amy Karp

Dance the night away! Jennifer Lopez was joined by her fellow World of Dance judges Ne-Yo, Jenna Dewan and Derek Hough during the FYC event for the series at Saban Media Center on May 1 in North Hollywood. Photo: Getty Images

Paris and Kathy Hilton looked equally stunning at Barron's fiancée's Tessa von Walderdorff bridal shower. The mom-of-the-groom showed off her toned arms in an off-the-shoulder dress while her oldest daughter wore a dress by Alice & Olivia. The couple, who got engaged in September, are set to tie the knot in June. Photo: Instagram/@parishilton

American Idol champs reunited in NYC. Carrie Underwood, who was in the Big Apple promoting her Calia by Carrie Underwood line, visited David Cook on Broadway at Kinky Boots. Photo: Getty Images

Nicky Hilton celebrated an early Mother's Day at Maisonette and Moda’s Mommy & Me collection celebration at Moda Madison in NYC. Photo: BFA

The boys of 'NSYNC reunited for their Hollywood Walk of Fame star ceremony. Lance Bass, JC Chasez, Joey Fatone, Justin Timberlake and Chris Kirkpatrick were joined by Carson Daly and Ellen DeGeneres, who both had fun roasting the group, before they took the stage. Lance delivered a moving speech where he discussed coming out years after he was in the band. “So many nights on stage, I’d see so many young, gay fans singing their hearts out and I wanted so badly to let you know, I was you,” he said. “I just didn’t have the strength then. But I do today, and so let me say loud and proud to all my LGBT brothers and sisters, who embrace me and show me the way to be who I am, thank you so much.” Justin Timberlake, who had wife Jessica Biel in the crowd, also took the time to thank their families for their support and his bandmates. "These four guys mean so much to me," he said. "We’re really a family and the memories that we have and the times that we’ve shared and the families that we’ve built from it ... I don’t think I could really put into words how much the four of you mean to me." After their ceremony and their appearance on The Ellen Show, the group sans Justin Timberlake continued the celebration at Delilah's in West Hollywood with around 200 people. A guest told HELLO!: "Justin was missed, but some of his family was there. It was a night filled with love." Photo: Getty Images

Gabrielle Union had her leading man Dwyane Wade by her side during the Universal Pictures special screening of her latest film Breaking In on May 1 in Hollywood. Photo: Getty Images

The Shadowboxers are very much visible as they have been on the road with Justin Timberlake during his Man of the Woods tour. "To say this is the best tour we’ve ever done is a huge understatement," the group that consists of Adam Hoffman; Matt Lipkins; Scott Tyler; Cole McSween; Carlos Enamorado told HELLO! after their L.A. Forum performance. "To be opening for one of the greatest entertainers of all time is a lot of pressure, but it has forced us to really up our game and approach our show from a completely new perspective. JT fans across the country have been really digging what we do, and it’s so gratifying to see the response every night. The whole thing is just too cool." Photo: The Shadowboxers/Matthew Ryan Schwartz

Selma Blair, Busy Philipps, Ashlee Margolis, Shiri Appleby and Sasha Alexander kicked off their week in style at the Communities in Schools annual celebration in L.A. Photo: Getty Images

Ryan Reynolds got the K-Pop star treatment as he arrived at the premiere of his latest film Deadpool 2 in Seoul, South Korea. Photo: Getty Images