Geoff Tate (born Jeffrey Wayne Tate, January 14, 1959; he later changed his first name to Geoffery or Geoffrey) is an American singer and songwriter. He rose to fame with the progressive metal band Queensrÿche, who had commercial success with their 1988 album Operation: Mindcrime and 1990 album Empire. Tate is ranked fourteenth on Hit Parader's list of the 100 Greatest Metal Vocalists of All Time. He was voted No. 2 on That Metal Show's top 5 hard rock vocalists of the 1980s. In 2012, he won the Vegas Rocks! Magazine Music Award for "Voice in Progressive Heavy Metal". In 2015, he placed ninth on OC Weekly's list of the 10 Best High-Pitched Metal Singers. After his farewell tour as Queensrÿche, he renamed his band Operation: Mindcrime, after the Queensrÿche album of the same name.

Description above from the Wikipedia article Geoff Tate, licensed under CC-BY-SA, full list of contributors on Wikipedia.