Felix A. Pappalardi Jr. (December 30, 1939 in Bronx, New York, USA - April 17, 1983 in Manhattan, New York, USA) was an American music producer, songwriter, vocalist, and bass guitarist of Greek ancestry. He was mainly known as bassist in legendary heavy blues rock band and hard rock pioneers Mountain in two periods (1969-72 and 1973-75) and producer of Cream, and also wrote, among others, the classic Strange Brew with wife Gail Collins and Eric Clapton for Cream. He was married to lyricist and artist Collins, who wrote the lyrics for several Mountain songs, and was also the artist behind the artwork to 5 of their 6 original albums. Leslie West had gotten to know the couple in 1965, after Pappalardi produced one of his early bands.