Marla Hansen

You may not know Marla Hansen by name, but there's a good chance you've at least heard-- if not seen-- the talented young lady. As an unassuming but in-demand violist, she's lent her string-pulling skills to the likes of Kanye West (even appearing with the MC on "Saturday Night Live") and Jay-Z (as part of an orchestra that backed Mr. Carter when he did Reasonable Doubt at Radio City Music Hall in June of 2006).