Jerry Corbetta

Gerald Anthony James Corbetta (September 23, 1947 – September 16, 2016) was an American singer-songwriter, keyboardist and organist, record producer, best known as a frontman for the Colorado rock band Sugarloaf, best known for their classic rock hit "Green-Eyed Lady".

Corbetta also toured for nearly five years with Frankie Valli and the Four Seasons as the "fifth season" nicknamed "Guido" by Frankie Valli.