2. Britney Spears
Britney Spears has been the laughing stock of the pop world many times during her colorful career, but back in 2004 she was also considered to be a home-wrecker.
At that time the queen of pop had just started fooling around with dancer/rapper Kevin Federline, who was then engaged to an actress/singer, Shar Jackson, with whom he had child together and another on the way. Quite a nice little love triangle, don’t you think?
Federline broke up with his pregnant fiancé and married Spears, only to have a whirlwind romance with her and then get divorced after only 3 years of marriage.