MAZEL TOV! Kelly Osbourne & Boyfriend Matthew Mosshart Are Secretly Engaged (PHOTOS)

Our favorite purple-haired girl is officially off the market!

Kelly Osbourne secretly got engaged to Matthew Mosshart and from the sound of it, they couldn't be any happier. 

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A friend of the Fashion Police co-host told Us Weekly:

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

Kelly and her new fiance have been dating for over a year and according to sources, got engaged a few weeks before the Christmas holiday. 

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Last October, Kelly told UK mag Fabulous: 

"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."

Wow! We knew someone would scoop her up eventually... 

Congrats!!

SOURCE: Us Weekly || Photo Credit: Daniel Deme/WENN