First off, couples that were dating in 1999 that definitely aren't anymore:
Freddie Prinze Jr. and Kimberly McCullough:
Ryan Reynolds and Kristen Johnston:
Ellen DeGeneres and Anne Heche:
Fred Durst and Carmen Electra:
Richie Sambora and Heather Locklear:
Sofia Coppola and Spike Jonze:
Gwen Stefani and Gavin Rossdale:
Susan Sarandon and Tim Robbins:
Andre Agassi and Brooke Shields:
Luke Wilson and Drew Barrymore:
Ben Affleck and Gwyneth Paltrow:
Billy Bob Thornton and Laura Dern:
Ethan Hawke and Uma Thurman:
Madonna and Guy Ritchie:
Claire Danes and Ben Lee:
Jennifer Lopez and Diddy:
Johnathon Schaech and Christina Applegate:
Jennifer Love Hewitt and Carson Daly:
David Copperfield and Claudia Schiffer:
Tom Cruise and Nicole Kidman:
Q-Tip and Janet Jackson:
Tommy Lee and Pamela Anderson:
Antonio Banderas and Melanie Griffith:
Melissa Etheridge and Julie Cypher:
Rebecca Romijn and John Stamos:
Eddie Furlong and Natasha Lyonne:
David Duchovny and Tea Leoni:
Dennis Quaid and Meg Ryan:
Jude Law and Sadie Frost:
Angelina Jolie and Jonny Lee Miller:
Julia Roberts and Benjamin Bratt:
Alec Baldwin and Kim Basinger:
Reese Witherspoon and Ryan Phillippe:
Mariah Cary and Luis Miguel:
Katie Holmes and this guy:
Elizabeth Hurley and Hugh Grant:
Kelsey and Camille Grammer:
Halle Berry and Eric Benet:
Nick Lachey and Jessica Simpson:
Sheryl Crow and Owen Wilson
Jared Leto and Cameron Diaz:
David Arquette and Courteney Cox:
Ashton Kutcher and January Jones:
And now for the couples that have been together since 1999. Truly a celeb miracle:
Sarah Jessica Parker and Matthew Broderick:
Danny DeVito and Rhea Perlman:
Tom Hanks and Rita Wilson:
Michael J. Fox and Tracy Pollan:
Kyra Sedgwick and Kevin Bacon:
Kurt Russel and Goldie Hawn:
Maury Povich and Connie Chung:
Cindy Crawford and Rande Gerber:
Sting and Trudie Styler:
David and Victoria Beckham:
Will Smith and Jada Pinkett Smith:
And Faith Hill and Tim McGraw:
What do you care who's happy?