"Kelly Osbourne and Matthew Mosshart have decided to end their engagement," her rep said in a statement to the magazine. "The split is amicable and the pair continue to have nothing but the utmost respect for one another. Kelly is looking forward to a new year full of fresh beginnings. No further comments will be provided by all parties, and we request privacy, decorum and space from the press but don't expect it."
Osbourne, 29, and Mosshart met in the summer of 2011 at Kate Moss' wedding. Mosshart, a vegan chef, proposed in Aguilla in July 2013.
Sharon Osbourne opened up about Kelly's breakup on The Talk Thursday. "Let the auditions begin!" she joked. " Matthew is a lovely guy. They had two great years together of fun and love, and for me, that's why engagements are so important. Engagements are a test run, aren't they? And so it didn't work for whatever reason, but they are still good friends and will continue to be. It's just not right for them right now."
Sharon also shot down reports that Kelly and Justin Bieber are an item. "They're friends. They're just mates, that's all," she said.
Kelly, who currently appears on E!'s Fashion Police, was previously engaged to model Luke Worrall from 2009-2010.
See what else Sharon said about Kelly on The Talk: