Jimi Jamison performing in Nashville, Tennessee, in 2009.
Beth Gwinn—Getty Images
September 2, 2014 6:58 AM EDT

Jimi Jamison, 63, whose soaring tenor powered many hits for the arena rock band Survivor, died Sunday night, the band confirmed Monday.

In a statement on its Facebook page, the band said: “The entire Survivor family is very shocked and saddened by the passing of our brother Jimi Jamison. Our thoughts, love and prayers go out to his family and friends.” No cause of death was given, but TMZ quoted Jamison’s booking agent as saying he died of a heart attack at his home in Memphis, Tennessee…

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