Extreme Ballerina

If you think you saw a ballerina flitting about London during the previous week, your eyes weren't deceiving you. It was French "Extreme Ballerina" Agathe Petrini, who usually does her daring photo shoots in the Alps. The 21-year-old was brought to London by Virgin Active to launch its new fusion ballet class "Barre". Here she is posing on a Tube sign with The Shard in the background.