Cory Wells, one of the lead singers of Three Dog Night, has died at age 74.

Wells passed away unexpectedly at his home on Tuesday. 

Starting in September, the band cancelled a series of shows stating that Wells needed further treatment for a nerve issue in his back that caused him severe pain.

Thus far, no cause of death has been announced.

Wells is survived by Mary, his wife of 50 years, daughters Coryann and Dawn Marie, and five grandchildren.

The band took to social media to announce Wells' death, with bandmate Danny Hutton saying, "It is with deep sadness and disbelief that I must report the passing of Cory Wells, my beloved band mate for over 45 years. Cory was an incredible singer – a great performer, he could sing anything."

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