Kat Von D and Jesse JamesJust one day after news of their engagement broke, sources are saying Jesse James and Kat Von D plan to marry as soon as next month, according to RadarOnline.

"Jesse and Kat don't see any reason why they should wait to trade vows," a source close to the couple said. "They are madly in love with each other and want to make everything official."

One person who's not so thrilled about the engagement? James' former mistress, Michelle "Bombshell" McGee, and she has a message for his new fiancee.