Diamond surprises with 'Sweet Caroline' singalong

The audience on opening night of the Broadway show, “A Beautiful Noise, The Neil Diamond Musical," got a special performance from the one and only Neil Diamond himself.

The impromptu performance of his hit, 'Sweet Caroline,' was his first time on stage in New York since his 2017 Parkinson's diagnosis.

In January 2018, Diamond retired from touring and has only given a handful of performances since.