He is a musician, songwriter, composer and
writer. When he was twenty,
and known as Gary Valentine, he became a founding member of the new wave
band Blondie and wrote their first single "X-Offender", initially entitled
"Sex-Offender" as well as "Presence Dear". He left the group in 1977 before they had gained their
later successes, being replaced by Nigel Harrison, and moved to Los
Angeles. Here, he formed The Know
from members of the group The Mumps and his claim to fame for them is that
they were the first band to play at Madame Wong's Chinese, which is a punk
venue and restaurant in Los Angeles.
He also appeared as a guitarist for Iggy Pop and several years later
formed the group Fire Escape.
Blondie excluded him when they regrouped in the 1990s but was
inducted into the Rock and Roll Hall of Fame in 2006. After many years in the
industry he released the solo album Tomorrow Belongs To You in
2003. Alongside his music he
is also a recognised author of books and newspaper and magazine articles
that concentrate on the two subjects; the occult and music. His publications include Turn
Off Your Mind: The Mystic Sixties and The Dark Side of the Age of Aquarius,
Into the Interior: Discovering Swedenborg, Rudolf Steiner: An Introduction
To His Life and Work and New York Rocker: My Life in the Blank
Generation with Blondie, Iggy Pop and Others.