Nikki Reed and Ian Somerhalder: 10 years
Reed, 29, and Somerhalder, 38, started their relationship in 2014. They were engaged in early 2015 and were married in April that same year. The couple welcomed daughter Bodhi Soleil in July 2017.
Adam Levine and Behati Prinsloo: 10 years
Levine, 38, married Victoria's Secret model Prinsloo, 28, in 2014. Prinsloo gave birth to their first child, a daughter named Dusty Rose, in 2016 and announced a second pregnancy on Instagram in September 2017.
Cheryl Cole and Liam Payne: 10 years
Former One Direction member Payne, 24, has been dating singer Cheryl Cole, 34, since 2016. She gave birth to their first son, Bear, in March 2017.
Blake Lively and Ryan Reynolds: 11 years
Reynolds, 40, and Lively, 30, met and became friends while filming "Green Lantern" about a year before they officially started dating in 2011. They married in 2012. The happily married couple have two daughters, James and Ines.
Ariel Winter and Levi Meaden: 11 years
"Modern Family" star Winter, 19, has been dating actor Meaden, 30, since 2016 and moved in with him in 2017.
Michael Fassbender and Alicia Vikander: 11 years
Vikander, 28, and Fassbender, 40, started dating after meeting on the set of "The Light Between Oceans." They are still dating.
Jay-Z and Beyoncé: 12 years
Beyoncé, 36, and Jay-Z, 47, first started dating back in 2001 before tying the knot April 4, 2008. Blue Ivy Carter was born in 2012, and the couple welcomed twins, Rumi and Sir, in June 2017.
William H. Macy and Felicity Huffman: 12 years
"Desperate Housewives" actress Huffman, 54, and "Shameless" actor Macy, 67, dated on-and-off for 15 years before marrying in 1997. They have two daughters.
Viola Davis and Julius Tennon: 12 years
Davis, 52, has been married to Tennon, 63, since 2003. The couple adopted a daughter in 2011. Tennon has two kids from previous relationships.
Zachary Quinto and Miles McMillan: 12 years
"Star Trek" actor Quinto, 40, has been dating model McMillan, 28, since 2013. They moved in together in 2015.
Hugh Jackman and Deborra Lee-Furness: 13 years
Jackman, 48, and Lee-Furness, 61, have been together for more than 20 years, meeting on the 1995 set of Australian show "Correlli" and marrying in 1996. They've adopted two kids.
Hayden Panettiere and Wladimir Klitschko: 13 years
Panettiere, 28, has been dating boxer Klitschko, 41, on-and-off since 2009. The have one daughter.
Stephen Moyer and Anna Paquin: 13 years
"True Blood" costars Moyer, 47, and Paquin, 35, started dating while filming the first season of the HBO show, which ran from 2008 to 2014. They were married in August 2010 and had fraternal twins, Charlie and Poppy, in September 2012. Moyer has two other kids, Billy and Lilac, from a previous marriage.
Camila Alves and Matthew McConaughey: 13 years
McConaughey, 47, met model Alves, 35, in 2006. He proposed on Christmas in 2011, and the couple married in June 2012. They have three kids: sons Levi and Livingston and daughter Vida.
Matt Bomer and Simon Halls: 13 years
Bomer, 39, and publicist Halls, 53, married in 2011. They have three sons.
Megan Fox and Brian Austin Green: 13 years
Fox, 31, and Green, 44, met on the set of "Hope & Faith" when she was 18. They became engaged in 2006 and they reportedly split three years later, but then the couple married in 2010. Fox filed for divorce in 2015. But by 2016, the couple was back together. They have three sons, and Fox is a stepmom to Green's son from a previous relationship.
Ellen DeGeneres and Portia de Rossi: 15 years
DeGeneres, 59, and de Rossi, 44, been together since 2004 and tied the knot in 2008 after the same-sex marriage ban in California was overturned.
Hilarie Burton and Jeffrey Dean Morgan: 16 years
"One Tree Hill" actress Burton, 35, and "The Walking Dead" villain Morgan, 51, have been dating since 2009. Morgan has referred to Burton as his wife, but no announcement of an official marriage was ever made. The couple has one son and revealed that a second kid was on its way at the 2017 Emmy Awards.
Amal and George Clooney: 17 years
George, 56, met international human-rights lawyer Amal, 39, at a dinner party hosted by a mutual friend in 2013. The couple tied the knot in Italy in 2014 and welcomed twins, Ella and Alexander, in June 2017.
Olivier Sarkozy and Mary-Kate Olsen: 17 years
French banker Sarkozy, 48, and Olsen, 31, were engaged in 2014 after reportedly dating for two years. They married in a small ceremony in 2015.
Amber Tamblyn and David Cross: 19 years
Tamblyn, 34, married comedian Cross, 53, in 2012. The couple welcomed a daughter, Marlow, in 2017.
Rosie Huntington-Whiteley and Jason Statham: 20 years
Actor Statham, 50, and model-actress Huntington-Whiteley, 30, started dating in 2010. The couple got engaged in 2016 and welcomed their first child, Jack Oscar, in June 2017.
Jennifer Lawrence and Darren Aronofsky: 21 years
Lawrence, 27, started dating director Aronofsky, 48, after meeting him while filming his horror film, "Mother!."
Annette Bening and Warren Beatty: 21 years
Bening, 59, and Beatty, 80, met in 1991 while filming the gangster drama "Bugsy." The two married in 1992 and have four kids together.
Harrison Ford and Calista Flockhart: 22 years
Ford, 75, and Flockhart, 52, first met at the 2002 Golden Globe Awards. They married in 2010 and have an adopted son.
Sam and Aaron Taylor-Johnson: 23 years
"Avengers: Age of Ultron" actor Aaron Johnson, 27, met director Sam Taylor-Wood, 50, when he starred in her movie "Nowhere Boy." He was 18 at the time. They were engaged months after meeting in 2009 and married in 2012. They changed their last name to Taylor-Johnson. The couple have two daughters, Wylda Rae and Romy Hero. Sam also has two daughters from a previous marriage.
Michael Douglas and Catherine Zeta-Jones: 25 years
Zeta-Jones, 47, and Douglas, 72, share the same birthday. The two were introduced at the Deauville Film Festival in 1998, married in November 2000, and have two kids. The couple briefly separated in 2013, but are now back together.
Alec and Hilaria Baldwin: 26 years
Alec, 59, married yoga instructor Hilaria, 33, in 2012. The couple have three children together and a fourth from Alec's first marriage.
Sarah Paulson and Holland Taylor: 31 years
"American Horror Story" star Paulson, 42, has been dating the 74-year-old Taylor since early 2015. Paulson confirmed their relationship in an interview with the New York Times in 2016.
Emilie Livingston and Jeff Goldblum: 31 years
Goldblum, 64, married gymnast Livingston, 34, married in 2014 and have since had two sons, the second having joined the family in April 2017.
Patrick Stewart and Sunny Ozell: 38 years
Stewart, 77, married jazz singer Ozell, 38, in 2013 after dating for roughly five years. The two met when Stewart was performing in "Macbeth" at the Brooklyn Academy of Music.
Arlene Silver and Dick Van Dyke: 46 years
Van Dyke, 91, married makeup artist Silver, 45, in 2012 after meeting her six years earlier at the SAG Awards.
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