LONDON - Amy Winehouse pleaded guilty Wednesday to assaulting a theatre manager at a family Christmas show.

The 26-year-old soul diva admitted charges of disorder and common assault during a Dec. 19 performance of the pantomime, or variety show, "Cinderella."

Winehouse appeared under her married name, Amy Civil, at Milton Keynes Magistrates Court, 80 kilometres north of London.

The singer shot to stardom with the Grammy-winning album "Back to Black" in 2006, but her music has been overshadowed by drug use, legal run-ins and a tempestuous marriage that ended in divorce last year.