19 Real-Life Celebrity Couples Who Dated And Broke Up A Longggg Time Ago, And You Completely Forgot They Were Ever Together

Being famous and in love tends to mean everyone in the world knows it...or do they really? Here's a roundup of the celebrity couples you probably forgot (or never realized) dated years ago:

1.To start, Leonardo DiCaprio and Gisele Bündchen were an It couple in the '00s. They dated for five years and broke it off in 2005.

Leonardo DiCaprio in a tux and Gisele Bündchen in a strapless gown holding hands on the red carpet
Kmazur / WireImage

2.Mila Kunis and Macaulay Culkin were linked for almost a decade before going their separate ways in 2011.

Macaulay Culkin and Mila Kunis sitting next to each at an event
Christopher Polk / FilmMagic

3.Murder by Numbers costars Ryan Gosling and Sandra Bullock briefly dated in 2002 but called it quits before they reached their two-year anniversary.

Sandra Bullock holding a wine glass and Ryan Gosling in a jacket putting his arm around her at the Murder by Numbers after party
Sylvain Gaboury / FilmMagic

4.Not only were Alexis Bledel and Milo Ventimiglia romantically linked in Gilmore Girls, they also dated IRL for four years and broke up in 2006.

Milo Ventimiglia in a football jersey standing next to Alexis Bledel who's wearing a  sequined sweater
John Sciulli / WireImage for The Rose Group

5.Chris Evans and Jessica Biel were together for a few years in the '00s and parted ways in 2006.

Chris Evans in a tee and pants next to Jessica Biel who's wearing a denim outfit and leaning her head against Chris's shoulder
Jon Kopaloff / FilmMagic

6.In 2006, Kim Kardashian and Nick Cannon got into a relationship, but it fizzled after about a year.

Kim Kardashian in a wrap dress standing next to Nick Cannon in a sweater and pants as they smile for the camera
Enos Solomon / FilmMagic

7.Tom Cruise and Penélope Cruz dated for two and a half years before their relationship came to a halt in 2004.

Penelope Cruz in a strapless formal gown as she puts her arms around Tom Cruise who's wearing a casual dark suit
Bill Davila / FilmMagic

8.Before Bennifer existed, we had Jennifer Lopez and Sean Combs. The pair's love story lasted between 1999 and 2001.

Jennifer Lopez in a low-cut sheer printed dress and Sean Combs in a suit at the 2000 Grammys
Scott Gries / Getty Images

9.Rachel McAdams and Michael Sheen met while filming Midnight in Paris and made their relationship red carpet official at the Cannes Film Festival in 2011. They later called things off in 2013.

Rachel McAdams in a jumpsuit and Michael Sheen in a suit on the red carpet for the 64th annual Cannes Film Festival
George Pimentel / FilmMagic

10.Kirsten Dunst and Jake Gyllenhaal were introduced by his sister Maggie and dated between 2002 to 2004.

Kristen Dunst in a lace dress and Jake Gyllenhaal with their arms around each other at the 2004 Vanity Fair Oscar Party
Jon Kopaloff / FilmMagic

11.Despite calling off their engagement in 2007, Nicole Kidman and Lenny Kravitz bumped into each other years later proving being friendly with your ex isn't as impossible as it seems.

Lenny Kravitz in a black suit and Nicole Kidman in a floral gown talking together
Charley Gallay / Getty Images for dcp

12.Ryan Reynolds and Alanis Morissette not only dated in the '00s, the couple even got engaged! They never made it to the altar and split for good in 2008 following six years together.

Ryan Reynolds wearing a leather jacket as he stands with his arm around Alanis Morissette, who's wearing a halter top at a premiere
Stephen Lovekin / FilmMagic

13.Cameron Diaz and Justin Timberlake worked together on Shrek the Third and coupled up from 2003 to 2007.

Justin Timberlake in a bomber jacket and pants next to Cameron Diaz in a sleeveless two-toned dress with at the premiere of Shrek the Third
Gareth Davies / Getty Images

14.Jonathan Groff and Zachary Quinto started dating in 2012 and ended the relationship a year later.

Zachary Quinto wearing a blazer and pants and Jonathan Groff wearing a plain dark t-shirt and jeans with their arms around each other
Bruce Glikas / FilmMagic

15.Although Janet Jackson and Matthew McConaughey never officially became a couple, they did enjoy one date night.

Janet Jackson in a denim top and high pony standing next to Matthew McConaughey who's wearing a button-up shirt with sunglasses
Kmazur / WireImage

16.Salma Hayek and Edward Norton reportedly got together in 1999 and kept their relationship pretty private until splitting in 2003.

Edward Norton, wearing a suit and tie, stands with his arm across Salma Hayek's shoulder. Salma is wearing a two-piece outfit and her hair pulled back
Dimitrios Kambouris / WireImage

17.Hilary Duff and Joel Madden's big age gap was a hot topic when the twosome started dating in 2004. While they were almost 10 years apart, the relationship didn't last past two.

Joel Madden in a gray-and-black suit and Hilary Duff in a bronze dress at the 33rd annual American Music Awards
Jeff Kravitz / FilmMagic, Inc

18.Ashton Kutcher and January Jones made things official in the late '90s and ultimately moved on from the relationship in 2001.

Ashton Kutcher with a shaggy haircut and dark suit, and tie standing next to January Jones who's wearing a dark jacket at the premiere of Reindeer Games
Ron Galella, Ltd. / Ron Galella Collection via Getty Images

19.Finally, former costars and longtime friends Jennifer Aniston and Paul Rudd had a short fling after appearing together in The Object of My Affection.

Jennifer Aniston in a two-toned strapless dress standing next to Paul Rudd at the premiere of Wanderlust
Kevin Winter / Getty Images

Which couple were you most surprised to see on this list? Share your pick in the comments!