'A Beautiful Noise' cast performs Neil Diamond at the 2023 Tony Awards

The 2023 Tony Awards turned into a massive “Sweet Caroline” singalong during a live rendition of the Neil Diamond musical “A Beautiful Noise.”

Jessica Chastain, Lin-Manuel Miranda and Barry Manilow were among the stars singing in their seats Sunday at Washington Heights’ United Palace as star Will Swenson strummed on stage.

“Ladies and gentleman, this might be the greatest ‘Sweet Caroline’ singalong in history!” Swenson proclaimed.

The rousing rendition was included at Sunday’s show despite “A Beautiful Noise” not receiving any nominations. Many considered the shutout among the biggest snubs at this year’s ceremony.

Swenson and Mark Jacoby, who played Diamond at different stages of his life, both received nominations at previous award shows for their portrayals.

Will Swenson and the cast of “A Beautiful Noise: The Neil Diamond Musical” perform onstage during The 76th Annual Tony Awards at United Palace Theater on June 11, 2023 in New York City. (Theo Wargo/Getty Images for Tony Awards Pro)

[ Tony Awards 2023: Full list of winners (LIVE UPDATES) ]

“A Beautiful Noise” debuted in December, with Diamond giving a surprise performance of “Sweet Caroline” at the Broadhurst Theater on opening night. Diamond, 82, was diagnosed with Parkinson’s Disease in 2018.