. . . "The Fourth Tenor" . "thirty-three additional concerts" . "singing group" . . . "Three Tenors" . "only three" . . "1990" . . . "Jos\u00E9 Carreras, Pl\u00E1cido Domingo y Luciano Pavarotti" . . . . "''Los Tres Tenores''" . . "The Three Tenors" . . . "Tres Tenores" . "2007" . . . "the Three Tenors" . . . . "The Three Tenors" . . . "The Three Tenors at Giants Stadium" . .