In 1958, a feud with Rudolf Bing led to Callas's Metropolitan Opera contract being cancelled. Impresario Allen Oxenburg realised that this situation provided him with an opportunity for his own company, the American Opera Society, and he accordingly approached her with a contract to perform Imogene in "Il pirata". She accepted and sang the role in a January 1959 performance that according to opera critic Allan Kozinn "quickly became legendary in operatic circles". Bing and Callas later reconciled their differences, and she returned to the house in 1965 to sing the title role in two performances as Tosca opposite Franco Corelli as Cavaradossi for one performance (March 19, 1965) and Richard Tucker (March 25, 1965) with Tito Gobbi as Scarpia for her final performances at the Met.