Sharon Osbourne -- 'America's Got Talent' Stage is a Death Trap


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Sharon Osbourne is blasting NBC -- calling the network a "disgrace" for ignoring a makeup artist who allegedly suffered serious injuries on the set of "America's Got Talent."

We broke the story ... Sharon's former makeup artist Jude Alcala is suing the Peacock , claiming he fell through a hole in the "AGT" set -- breaking his femur and damaging his shoulder.


Now, Sharon is going on the attack on Jude's behalf ... telling TMZ, "[It's] the worst stage in the entire world."


She continued, "Some guy designed a stage set with a hole in the middle. Somebody has to pay the price."


We reached out to NBC and Fremantle for comment on the lawsuit -- but never heard back.