The Top 10 Most Shocking Celebrity Breakups!

Oct. 10, 2009 — -- Justin Timberlake and Jessica Biel are reportedly donezo. Though nothing has been officially confirmed and the couple was seen together earlier this week, it would be a slightly shocking breakup, mostly for the alleged claim that Rihanna is JT's other woman. After three years of on-again, off-again for Jessica and Justin, all it took was some sightings with the feisty singer to launch a truckload of rumors. [Terra]

Though they might not be over IRL (in real life), it reminded us of some other shocking celebrity breakups!

Brad Pitt and Jennifer Aniston. I'm sure you remember where you were in 2005, when it was announced that Brad Pitt and Jennifer Aniston were getting a divorce. The Hollywood golden couple seemed to have it all, from their $1 million wedding to their joint production company. We all know what happened next: Fiery Angelina Jolie sauntered over and upgraded Brad to the dark side. But even Jen didn't know that Brad had cheated on her until vacation photos popped up months later. [CBS News]

Jon and Kate Gosselin. Anyone who watched the early episodes of "Jon and Kate Plus 8" knows that they always had problems. Sure, people surmised that Jon wasn't happy because of the bickering and Kate's blatant disregard for his right to speak, but it was still heart-breaking to watch their family fall apart on national television. All of Jon's cheating and Ed Hardy-fueled grossness has turned Kate into a martyr, so we'll have to see if Jon's attempt to slow the divorce will help him "regain control over the future" of his family. [NY Daily News]