Only one lyric tenor on the scene today has the honeyed tone and ingratiating style to make comparisons to Pavarotti and Gigli seems serious, and it is Calleja, the man from Malta, who... is now maturing into an artist of the first rank." - New Yorker

Any doubts about the most winning lyric “Italian” tenor since Pavarotti tackling this heavy Verdi repertoire are largely dispelled by the vitality of his sunny sound and the clarity of his diction. - The Sunday Times Hugh Canning

...his clarion-clear, Mediterranean tenor with its distinctive fast vibrato has star quality to burn. - Richard Fairman , Financial Times