In the early days, I often felt that I was taking a math test when we were playing. It was a profound feeling of having to prove myself.

Christopher "Chris" Stein (born January 5 1950) is the co-founder and guitarist of the New Wave band Blondie. See also
List of Rock and Roll Hall of Fame inductees. In addition to being the sole writer of the Blondie hit song "Sunday Girl" Stein co-wrote numerous hits with Blondie's lead vocalist Deborah Harry including "Heart of Glass" "Picture This" "Dreaming" "Island of Lost Souls" "Rapture" and "Rip Her to Shreds".

In 1983 Stein was diagnosed with pemphigus vulgaris a rare autoimmune disease of the skin but he has since regained normal function. Stein also ran the Animal Records label between 1982 and 1984.