Britney Spears formalized her marriage to dancer Kevin Federline on Thursday. "All the proper paperwork was dealt with," her rep tells Reuters. "It's all legal." But just as Brit was solidifying one relationship, she was ending another. After nine years together, the "Toxic" pop star and longtime manager Larry Rudolph have parted ways. In a statement, Rudolph said, "Britney and I simply realized that we have done all we can do together." And if you don't believe him, rent Crossroads and fast-forward to the scene where Brit recites the lyrics to "I'm Not a Girl, Not Yet a Woman" to Mount.