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A clearly upset Sharon Osbourne broke her silence on her son's Jack Osbourne's recent diagnosis with multiple sclerosis on The Talk.

With tears streaming down her face, Sharon seemed unable to even talk, but eventually thanked "everyone for all their texts and goodwill and love they send to us…"

Related: Jack Osbourne Diagnosed with Multiple Sclerosis

She also shared that her son Jack is "doing great, he's doing really really good."

Sharon's co-hosts were clearly saddened as well, with Julie Chen choking up at Sharon's emotional message.

Related: Jack Osbourne & Fiancee Welcome Baby Girl

Jack recently revealed to People that he has been diagnosed with multiple sclerosis, just weeks after his fiancé Lisa Stelly gave birth to their daughter. He will appear on The Talk on Wednesday to talk about his diagnosis.