Violinist Bell's full concert at Washington's Union Station

Aired: 10/1/2014 | 0:25:18 | Clip
A superstar of classical music might normally draw a huge crowd, but that wasn’t the case when violin virtuoso Joshua Bell held an impromptu recital in a Metro station in 2007 -- largely ignored by a few thousand commuters. On Tuesday, Bell returned to give a performance at Washington's Union Station, and this time people paid attention.