Wednesday, July 7, 2010 9:01am ET by  

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Winehouse joins Ronson on stage

Amy Winehouse joined Mark Ronson on stage last night (July 6) at London's 100 Club.

The producer was launching his new band The Business Intl. He showcased tracks from his forthcoming album 'Record Collection', with guests including Yeah Yeah Yeahs' live keyboard player MNDR, singer Rose Elinor Dougall and Spank Rockplaying at the show.

Winehouse joined Ronson on stage towards the end of the night and sang her collaboration cover version of the Zutons' "Valerie" during the encore with the band.

Mark Ronson & The Business Intl release 'Record Collection' in September.