Are both Chris Robinson and Tom Chaplin musicians?
yes
Title: Tom Chaplin
Passage: Thomas Oliver Chaplin (born 8 March 1979), is an English singer-songwriter, musician and composer, best known as the lead singer of the British pop rock band Keane.
Title: Chris Robinson (singer)
Passage: Christopher Mark "Chris" Robinson (born December 20, 1966) is an American musician.  He was the singer of the rock and roll band The Black Crowes and brother of its guitarist Rich Robinson.
Title: Charlie: The Life and Art of Charles Chaplin
Passage: Charlie: The Life and Art of Charles Chaplin is a 2003 American biographical documentary film written and directed by film critic Richard Schickel.  The film explores the personal and professional life of the British actor, comedian and filmmaker, Charlie Chaplin, as well as his legacy and influence.  It is narrated by Sydney Pollack along with many Hollywood personalities appearing in the film talking about Chaplin, including Robert Downey Jr., Norman Lloyd, Bill Irwin, Woody Allen, Johnny Depp, Richard Attenborough, Martin Scorsese, Miloš Forman, Marcel Marceau, David Raksin, Claire Bloom, David Thomson, Andrew Sarris, Jeanine Basinger and Chaplin's children Geraldine, Michael and Sydney Chaplin.  The documentary also benefits from insight from key Chaplin biographers David Robinson and Jeffrey Vance.
Chris Robinson (singer) Tom Chaplin