This was followed by the hugely successful Three Tenors concert held on the eve of the World Cup final at the ancient Baths of Caracalla in Rome with fellow tenors PlÃ cido Domingo and JosÃ Carreras and conductor Zubin Mehta , which became the biggest selling classical record of all time . This was followed by the hugely successful Three Tenors concert , held on the eve of the World Cup final at the ancient Baths of Caracalla in Rome with fellow tenors PlÃ cido Domingo and JosÃ Carreras and conductor Zubin Mehta , which became the biggest selling classical record of all time .