"Dancing with the Stars" darling and reality TV princess Kelly Osbourne has dumped her British model fiancé Luke Worrall amid reports that Luke cheated.

kelly osbourne and luke worrall

Kelly tweeted about their breakup today, "Thank you all so much for your support but the matter is private and [I] will not be commenting. Enough damage has already [been] done!

Osbourne, 25, and Worall, 20, got engaged in March 2009 and endured Kelly's rehab treatment together. He was also supportive of her stint on "Dancing" last year.

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