The singer retired in 2018 but made a rare public appearance at Saturday’s game.
Diamond himself performed “Sweet Caroline” at Fenway on opening night of the 2010 season.
Diamondretired from touring in 2018due to his diagnosis with Parkinson’s disease.

Neil Diamond reaching out, touching me, touching you at Fenway Park.Sarah Stier/Getty
“It is with great reluctance and disappointment that I announce my retirement from concert touring.
“My thanks goes out to my loyal and devoted audiences around the world.
You will always have my appreciation for your support and encouragement.
This ride has been ‘so good, so good, so good,’ thanks to you.”
Despite the legend’s appearance, the Sox still lost handily to the Cardinals, 11-2.