"You'll Never Walk Alone" is a show tune from the 1945 Rodgers and Hammerstein musical Carousel. You might know it best from soccer football matches, particularly when they involve Liverpool, or maybe as the song Jerry Lewis used to sing at the end of his Jerry Lewis MDA Telethon.
I've never seen Carousel, but I know these covers of You'll Never Walk Alone.
Gerry & the Pacemakers
That last one is my favourite.