After having been together for almost four years, Cameron Diaz and Justin Timberlake decided to call it quits in January. Although things were tense for awhile, the former couple were photographed together laughing and joking while promoting their film "Shrek the Third." Lester Cohen/WireImage.com - May 6, 2007
Celeb Breakups of '07
Check out the celebrity couples who called it quits in 2007.