Well...under the circumstances...I'll go:
"I was born on March 16, 1926, in Newark, New Jersey. My parents were professionals in the entertainment world and the bug caught me at an early age. When I was five years old I made my debut in New York's Borscht Circuit singing "Brother, Can You Spare A Dime?" By the time I was fifteen, I had perfected a comic routine, miming and silently mouthing lyrics of operatic and popular songs to a phonograph located off-stage. This was known as my "Record Act".
In 1946, I needed a stand-in for my act and asked an obscure singer that I had performed with to help me out. We did some comic routines and were discovered by a movie producer during the act.
My partnership with this obscure singer lasted ten years and we made several movies during that time. Our partnership dissolved and I went on to a very successful solo movie career where I applied my comic talents.
In later years, I successfully founded a charity which via the use of television, became one of the most successful charities ever. A virtual who's who of Hollywood appeared on the show."
Who am I?