Kevin Federline Knows How to Write?

It's true folks, Kevin Federline knows how to read and write. Who knew? US Weekly reports that K-Fed wrote Britney a letter in their final days. Apparently she had been planning to file for awhile, but this letter sent her over the edge. Federline sent the letter on November 6th, after they had been fighting for a week via text message:

"It mostly blamed Britney for all their problems," a family insider says of the letter. Hours later, enraged, she notified her attorney to start drafting the divorce petition and signed it at the hotel just before making a surprise appearance on CBSs Late Show With David Letterman – minus her wedding ring.

"That's why she looked so happy," says the source. "A weight had been lifted."

[Photo from People]