Winehouse performs with Ronson on stage

LONDON, July 8 (UPI) -- British soul singer Amy Winehouse, who has performed infrequently in recent years, appeared onstage with musician Mark Ronson Tuesday night.

The BBC said Winehouse helped Ronson sing their 2007 hit "Valerie," but she seemed to forget many of the words to the song.

Winehouse, a Grammy Award winner, made the rare appearance during Ronson's first full performance with his new band, The Business International, at the 100 Club in London, the BBC said.

Winehouse's once-bright career has been eclipsed for some time by reports of her outrageous behavior, drug addiction and legal woes.