Sarah Michelle Geller and Freddie Prinze Jr. celebrate a huge milestone!

Sarah Michelle Geller and Freddie Prinze Jr. just celebrated their 15th wedding anniversary. In celebration of the momentous milestone, the 39-year-old posted an adorbs montage video of the couple. “My husband thinks I’m crazy, but I’m not the one who married me. #happyanniversary @realfreddieprinze 15 years!!” She captioned the vid. Aww!

Back in 2015, the blonde beauty shared a beautiful and rare snap from their special day, and it’s clear she is still every bit as in love with her hubby as she was on their wedding day back in 2002! The couple now share two kids together, Charlotte, seven and Rocky, four.

Pink and Carey Heart celebrated 11 years of marriage in January 2017 and Pink described her marriage as “yum” in a gushy post on Instagram. “Yum yum yum yum yum yum yum yum yum yum yum 👅 that’s one for every year care bear. I really like you this week. #happyanniversarymylove I’m very lucky to be able to say that you’re mine. Thanks for sticking around,” she captioned the snap.

Reese Witherspoon has shared a heart-warming message to her husband Jim Toth on their sixth wedding anniversary. Alongside a stunning snap, she wrote: “Six years ago I was lucky enough to marry this wonderful man. He makes me laugh everyday and supports me in everything I do. Happy anniversary, JT! Here’s to many more! ❤️”

“I like Victoria for herself… I’d like her if she worked in [supermarket] Tesco!” David Beckham doesn’t care for the glitz and glamour, he loves his wife of 17 years simply for her winning personality! WATCH: VB reveals David steals her beauty products! Gallery continues

Tom Hanks and Rita Wilson’s love only gets stronger as time goes by! Taking to Instagram to commemorate their incredibly impressive 29-year wedding anniversary (that’s practically a million years by Hollywood standards), Rita shared this sweet pic and penned: “29 years of marriage! Thank you, God, for bringing me this man.”

Flashback to their very ’80s-inspired wedding day! So what’s their secret? “We just like each other. You start there,” Tom says. WATCH: Tom on his relationship with Rita. Gallery continues after the video!

Neil Patrick Harris and David Burtka just celebrated their 13th anniversary. Neil shared a photo of his leading man and their six-year-old son Gideon, penning, “Thirteen years and one day ago, I crossed paths with the guy on the left. The adventures have never ceased. The love has never waned. The gifts are never ending (the guy on the right, e.g.). Happy Anniversary, @dbelicious. You’re the best.” David also paid tribute to their milestone, gushing, “Thank you Neil for being compassionate, adventurous, and an all around fantastic man. I love you more than ever.”

Despite beginning their relationship in 2004, Neil Patrick Harris and David Burtka, who are pictured here at their first appearance as a couple in 2007 (L), came out as an item in 2006. In his autobiography the How I Met Your Mother star wrote about his husband: “It’s natural. It’s familiar. It’s as cosy as an old shoe. You’ve met the right man, and luckily you’ve done so at the right time.”

These days, the couple adore being parents to their twins Gideon and Harper. Neil revealed that the six-year-olds were even involved in 2013 nuptials in Italy. “Harper was the flower girl. Gideon was supposed to be the ring bearer. He said, ‘I’m the orange boy.’ We said, ‘What in the world is an orange boy?’ He explained this whole thing that he comes down with a basket of oranges and he hands the oranges to everyone [at the wedding].”

After a rough year for romance in Hollywood, Barack Obama has restored our faith in love with this anniversary tribute to his wife Michelle. “Dancing through 24 years. Happy Anniversary,” the President penned.

A second snap posted to the 55-year-old’s Instagram snap shows a rare moment on PDA between the loved-up pair. “Happy Anniversary,” he wrote simply, adding a love heart emoji.

They’ve been together since meeting at the 2000 Olympics and it’s fair to say Princess Mary and Prince Fred’s love story deserves a gold medal! With four beautiful children and a rock-solid marriage, these two are the real deal.

Goldie Hawn and Kurt Russell are the ultimate Hollywood pin-up. Despite being together since 1983, they’ve never married. “The question is, ‘Why [get married]?’ It’s not, ‘Why not?’ We love each other. We fight the way people are supposed to fight. We love our lives together,” the actress has revealed.

They’ll be celebrating 34 years of marriage on August 21 but for Bono and Ali Hewson, pictured here in 2002 (L) and 2014 (R), it’s all about the humour. “She’s a very independent, smart kind of girl, who, I think, sees me as a figure of amusement. Most of the time, I enjoy her company,” the Irishman revealed to The Sun.

Talking to Goodhouse Keeping Sarah Jessica Parker revealed the secret to her 19 year marriage with Matthew Broderick, “I think growing up in a big family taught me a lot of problem solving and how to share and compromise, and that’s been helpful in my marriage.” One of the first times they showed off their love was at the 1993 Golden Globe Award (L) and in January this year (R) they were still head over heels!

Back in 1997 (L) they were newly married and just starting their careers, now an Emmy, some Tony Awards and two beautiful kids later, Hugh Jackman and Deborra Lee-Furness are still blissfully happy. Hugh revealed the secret to his happy marriage in Goodhouse Keeping, “Your wife is always right. Very simple.”

Pictured here in 1997 (L) and then in 2015 (R), Elton John and David Furnish began their relationship in 1995 and two decades later they have two gorgeous kids and the most glamorous lives in the biz.

Almost 38 years ago Meryl Streep married sculptor Don Gummer. Seen here together in London in 1980 (L) the pair have kept a relatively simple life after having four children. Earlier this year the Oscar-winner told Marie Clare, “You just have to keep on doing what you do. It’s the lesson I get from my husband; he just says, Keep going. Start by starting.”

Despite never marrying and keeping their relationship very private, Oprah Winfrey and Stedman Graham have proved that love can last in Hollywood. They were beaming in 1987 (L), a year after they became a couple, and earlier this year at the Oscar’s they had that same look of love almost three decades later.

Royally in love! “It’s fantastic having a lovely little family, I’m so thrilled. Catherine has been doing an amazing job as a mother, and I’m very proud of her,” Prince William has said of his wife Duchess Catherine.