Gwen Stefani

Celebrities got into the Memorial Day spirit when they stopped by producer Joel Silver's annual Memorial Day Malibu beach party yesterday. Guests included Diane Kruger and Joshua Jackson, Gwen Stefani and her family, Sean Penn, Kate Beckinsale, and Tobey Maguire, who was back in family mode after wrapping up a whirlwind world press tour for The Great Gatsby. The group partied at Joel's Malibu home, which included a giant inflatable slide that was set up right on the beach to keep the kids entertained. Joel's annual party has become a major event for Hollywood's biggest celebrities — past guests have included Selena Gomez, Courteney Cox, and Tom Cruise. While Joel's party drew out a ton of A-listers, that doesn't mean that they were the only stars who were celebrating over the holiday weekend — check out how the stars celebrated Memorial Day!

The 2013 Met Gala may have given celebrities a chance to channel their inner punk rocker in NYC yesterday, but once the event drew to a close, it was clear that these edgy new looks were only meant to last for the night. Stars like Cameron Diaz and Miranda Kerr were spotted returning to their normal selves as they left the bash, with Cameron chatting on her cell phone as she waited for her car and Miranda enlisting Michael Kors to help her navigate the stairs in her heels. Emma Roberts got help from Jaime King as she left the party, clutching onto her pal's hand as she carefully walked down the museum's famous stairs while Gwen Stefani made a smooth exit with Gavin Rossdale. Meanwhile, stars like Anne Hathaway and Taylor Swift were showing no signs of slowing down, using the mass exit of celebrities as a chance to catch up with their favorite small-screen stars like Game of Thrones' Nikolaj Coster-Waldau and New Girl's Zooey Deschanel.

Of course, just because the Met Gala wrapped up, that didn't mean the party had ended. Anne, Miranda, and many more celebrities hit up the afterparty at the Boom Boom Room later to dance the night away — be sure to check out the pictures from the Met Gala 2013 afterparty.

Gwen Stefani got into the Costume Institute Benefit's punk theme in a custom look by Maison Martin Margiela tonight. The No Doubt singer had her husband, Gavin Rossdale, on her arm for the festivities. Gwen's cutout creation was designed specifically for her to wear to the annual fashion event, which celebrates the Metropolitan Museum of Art's Punk: Chaos to Couture exhibit. Gwen got the stylish fun started on Saturday night, when she attended a special screening of The Great Gatsby alongside Katy Perry, Emma Roberts, Leonardo DiCaprio, and Carey Mulligan. Gwen may be back to mingling with Carey, Emma, and Katy tonight, since they are also on the list of Met Gala attendees — let us know whose look is your favorite in our Met Gala fashion and beauty polls!

Carey Mulligan, wearing Lanvin, joined Leonardo DiCaprio to show their new film, The Great Gatsby, to a star-studded crowd in NYC last night. Katy Perry, Gwen Stefani, David Schwimmer, and Emma Roberts turned out to see the Baz Luhrmann-directed version of F. Scott Fitzgerald's classic novel. The celebs retired to the Top of the Standard for the afterparty. Many may return to the Standard's top-floor bar this evening, too — it's a popular spot for post-Met Gala bashes!

Carey and Leo mingled with famous fans of their film following a big week. They attended the NYC premiere Wednesday at Lincoln Center along with costars Tobey Maguire and Isla Fisher. The coming days will bring more fun. They're expected on the Croisette in Cannes to screen their film, which will open the city's 2013 film festival.

Johnny Depp and Amber Heard were photographed showing PDA Saturday night as they left a secret Rolling Stones show at LA's Echoplex. Johnny and Amber costarred in the 2011 film The Rum Diary but have kept any possible romance out of the spotlight until now. Amber was able to mingle with the Stones, thanks to Johnny's longtime friendship with Keith Richards. Johnny and Amber were among the 700 people who saw the Stones after the band announced the show on Twitter earlier in the afternoon.

Amber and Johnny were just two of many celebrity guests last night. Also out to see Keith, Mick Jagger, Charlie Watts, and Ron Wood do their thing were Gwen Stefani, Mary-Kate Olsen, Ashley Olsen, Owen Wilson, and Maria Shriver. Bruce Willis, who has a vacation home near Keith at Parrot Cay in Turks and Caicos, also attended with his wife, Emma Heming. Stones wives and girlfriends Patti Hansen and L'Wren Scott and 65-year-old Ron's wife of four months, 35-year-old Sally Humphreys, were there, too. The Stones got in last night's show before kicking off their "50 & Counting" world tour this Friday at LA's Staples Center.

Gwen Stefani and Gavin Rossdale took their boys, Kingston and Zuma Rossdale, to the Kidspace Children's Museum in Pasadena yesterday. Gwen had some fancy accessories, wearing a Louis Vuitton and toting a Coco Cocoon Chanel tote. Kingston and his little brother, Zuma, had their hands full too, leaving the museum with souvenir toy lizards.

Gwen and her men celebrated Easter last weekend with a fun-filled day at the park. The famous family also hit up the playground last week, after Gwen and Gavin took their boys to meet the Easter Bunny. Gwen is making the most of her time at home since No Doubt canceled their tour. Instead, she and her bandmates have been hard at work writing new music, as Gwen reassured fans on Twitter recently.

Gwen Stefani and Gavin Rossdale showed PDA during a visit to an LA park with their boys, Kingston and Zuma, on Saturday. The family's pup also joined in on the outing to the playground, where the boys chowed down on popsicles. The family fun continued yesterday during a visit to Gwen's parents' home for Easter celebrations. Gwen donned a white dress while her boys wore matching outfits for the holiday festivities. Kingston and Zuma got a head start on the Easter festivities last weekend, when they visited the Easter Bunny.

Gwen has been busy balancing her home life and work with No Doubt. The band recently announced that they would be canceling their tour in order to work on a new album, and Gwen and her bandmates are staying true to their word. She took to Twitter last week to reveal that she and the band are hard at work on the new music, sharing, "Writing, writing, writing. Back at it today."

Celebrity families were busy this weekend celebrating the holidays and jetting off for vacation time. Jessica Alba dressed up in festive pastels with her daughters, Honor and Haven Warren, while model Doutzen Kroes soaked up the sun in Mexico with her son, Phyllon Sunnery. Gwen Stefani and Gavin Rossdale stopped by a park with their boys on Saturday before Easter Sunday, and Jennifer Garner and Violet Affleck were all smiles this morning in LA. Click through to see more stars spending time with their little ones.