Report: Hollywood's most famous pre-marriage breakups!

After Britney Spears' breakup with fiancé Jason Trawick; People.comreleased an exclusive report about Hollywood's a-list stars that broke up withtheir partners a few days before getting married.

Spears, who triggered the report, was on top of the list whereshe began her relationship with Trawick two years ago and announced herengagement back in December 2011. Trawick said he wanted his life back and feltthat he was just a sitter for Sprears' children.

Coming in second place are Jennifer Lopez and Ben Affleck-Hollywood's most famous couple and named Bennifer- who started dating aftershooting Gigli in 2002 and announced their engagement in October of that year.Just four days before the wedding, the couple announced their split and didn'tpay attention for the ceremony which was almost ready with all preparation.

SiennaMiller and Jude Law come in next: the couple started when Sienna was filming"Alfie" in late 2003, and announced their engagement in Christmas2004. In July 2005, Jude released a public apology to Sienna for cheating onher with his children's nanny and it seems that things didn't work out as theyannounced their split in November a year later. Even though Sienna and Judestarted dating again in summer 2010, but they broke up again at the beginningof 2011.

The couple in fourth place are Brad Pitt and GwynethPaltrow who began their romance in 1994 where Brad said that Gwyneth was thelove of his life and his angel. But their engagement didn't last for more thansix months and Gwyneth announced later that she didn't want to get married.

"The Runaway Bride", a.k.a. JuliaRoberts, called off her wedding from Kiefer Sutherland just three days beforethe ceremony. The couple announced their engagement after they worked togetherin "Flatliners" and they had a not so long relationship. Julia saidthat Sutherland cheated on her with a stripper which he denied, but she didn’t waitfor any proof and ran away with his friend to Ireland at the day of herwedding.