© Under licence to London News Pictures. 31/03/2011. Zippo's Circus opens in Finsbury Park, London, with a brand new show "Horsepower", featuring horses of both the corporeal and mechanical kinds. Yasmine Smart, grand-daughter of Billy Smart, returns to the UK to perfrom for the first time in 25 years, with a new act, on her new horse, Andalusian Stallion, 'Diamond'. Picture credit should read: Jane Hobson/London News Pictures