The artists have collaborated intensely on tango projects nationally and internationally, especially with the opera/tango/dance-fusion show Violetta's Last Tango. They perform tangos by Carlos Gardel, Astor Piazzolla and other composers from the Golden Age of Tango. Both performers have performed with top UK group Tango Siempre. Julian is well known as composer and arranger and also performs regularly on national television. Ann is an international opera singer and also dances tango. They headlined a new festival at London's Southbank Centre in July 2018, Havana Buenos Aires, combining programmes of classical Cuban music and tango.