Disappointed Neil Diamond fans will get a refund after attending a concert at Ohio State University in which the 67-year-old singer's voice sounded raspy.

Some fans left the Monday concert in Columbus early and others said Diamond completed the concert without mentioning anything to the audience about his voice.

A statement from Diamond, the singer of such hits as "Sweet Caroline" and "Song Sung Blue," on Tuesday said a doctor has diagnosed acute laryngitis.

Diamond spokeswoman Eve Samuels says the singer is offering a refund to those who place a request before Sept. 5.