Mike Coppola / WireImage 1 / 9
Mike Coppola / WireImage 1 / 9

The Osbournes suffered a death at Christmas: The family's pet dog, Martin, died on December 24.

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Kelly Osbourne broke the sad news via Twitter early on Christmas morning.

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She wrote, "Today is a sad day in the Osbourne family house hold we lost R (our) dog martin of 14 years. Devastated does not quite sum it up! NotSoMerryXmas."

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