osbourne012313.jpg She finally found her Prince Charming!

Kelly Osbourne is secretly engaged to her boyfriend Matt Mosshart, Us Weekly reports.

The Fashion Police host's vegan chef beau popped the question right before Christmas. The couple, who met at pal Kate Moss' wedding, have been dating for over a year.

"Kelly is the happiest she's ever been. Her career is going well, and she's in a healthy relationship with a wonderful guy," a family insider told the mag.

Her famous family is thrilled she's finally found The One, and think he is a "a stand-up guy."

It's been a long road to happiness for Kelly O, who admitted last October that she's never been as settled as she is currently. "I couldn't believe that he truly liked me because I never think people ever could. But I'm so happy. I don't think I've ever really known what love is like before," she told Fabulous magazine.

We are so happy for her!