The Red Sox brought in a very special guest to sing “Sweet Caroline” in the middle of the eighth inning on Saturday afternoon: the man who wrote and sang the song himself, Neil Diamond.

The Fenway tradition has been used by teams across different sports to honor Boston since Monday’s marathon bombings. The fans in the crowd got into the song like never before with Diamond leading them.

Check out the very special moment from Saturday at Fenway Park in the video above.