The Horsemen” flying a pairs display in 2 x P-51s at Flying Legends in 2011.
The Flying Legends is a two-day airshow, held at Duxford Aerodrome in Cambridgeshire, England at the beginning of July every year.
The airshow features only warbird and vintage aircraft, such as the Supermarine Spitfire, Hawker Hurricane, North American P-51 Mustang and resident Boeing B-17 Flying Fortress Sally B. It is run by The Fighter Collection, which is based at Duxford.
Sources: YouTube; Wikipedia