Sharon Osbourne's former make-up artist is suing NBC bosses and the producers of America's Got Talent for negligence, insisting they were to blame for a nasty accident he suffered on the set in June (13).

Jude Alcala, who worked with Osbourne on the hit talent show in 2012, has named Nbc, Simon Cowell's Syco Entertainment, and FremantleMedia in her lawsuit, accusing them of negligently maintaining the stage without proper warning signs.

Alcala broke his thigh bone and reportedly required surgery after injuring his shoulder when he fell from the platform, and he has now filed a lawsuit demanding unspecified damages, according to