"Masculine... Sings Like an Angel"

Hytner’s principal accomplice in this feat is Mr. Hayden, a previously unknown American actor not long out of Juilliard who brings to Billy a Warren Beatty-­like mixture of masculine belligerence, bewilderment and tenderness and sings his marathon ‘Soliloquy’ like an angel well before the character becomes one.
— Ben Brantley, The New York Times