Q: Who as collaborated musically with both Leo Abrahams and Art Garfunkel?
Leo Abrahams:  He has collaborated with a multitude of professional musicians, including Brian Eno, Imogen Heap, Jarvis Cocker, Carl Barât, Jon Hopkins and Paul Simon. Paul Simon: Paul Frederic Simon (born October 13, 1941) is an American musician, singer-songwriter and actor. Paul Simon:  Simon's musical career has spanned seven decades, with his fame and commercial success beginning as half of the duo Simon & Garfunkel, which was formed in 1964 with Art Garfunkel.
i don't know