"A Look Back" is a daily column that highlights a moment from fashion's fabulous past. Today's pick is a photo of French actor/musician Serge Gainsbourg in Cannes, taking a photo of English actress Jane Birkin. Birkin, who Hermes named its famous "Birkin" bag after, was Gainsbourg's wife and muse for years. Birkin and Gainsbourg had one daughter together, Charlotte Gainsbourg , who is also a singer, actress and muse to houses like Balenciaga. How cute is Jane's crochet crop top?

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