A Beautiful Noise: The Neil Diamond Musical is currently playing in Los Angeles and a lucky audience this weekend was treated to an incredible surprise.

Neil Diamond himself was in attendance at the matinee performance on Saturday (July 12) at the Pantages Theatre in Hollywood.

After the performance, the musical’s lead actor Nick Fradiani introduced Neil to the audience and the legendary singer appeared in the middle of the orchestra right section to lead an sing-a-long performance of “Sweet Caroline.”

Neil visited with the cast following the show and took pictures with the cast. See more photos in the gallery and watch video of the appearance below.

Nick, a former American Idol winner, previously starred in the musical on Broadway and is now leading the national tour. A Beautiful Noise is playing at the Pantages Theatre through July 27. Get tickets now!