On January 12, 2007, one of the world's greatest violin players set up shop in the L'Enfant Plaza Metro station in Washington, D.C. Wearing jeans, a long-sleeved T-shirt, and a Washington Nationals baseball cap, 39-year-old Joshua Bell pulled out his instrument -- handcrafted by Antonio Stradivari in 1713 and purchased in 2003 for nearly $4 million -- and played six classical songs for rush-hour commuters.
