OH, FOR CHOPS LIKE HOPS:

Where Voices Become Instruments Of Soul (Weekend Edition, 6/06/09, NPR)

Many people know about Naturally 7, an acclaimed a cappella septet, from watching a YouTube video in which the musicians perform in the Paris Metro during rush hour. The group has toured with Michael Buble and performed for Prince Charles and Quincy Jones. Naturally 7 recently visited NPR's Studio 4A for a performance and interview with Scott Simon.

The group's members — who have trained their voices to mimic various instruments, including bass guitar, drums, harmonica, flute and baritone horn — met in New York City. Brothers Roger and Warren Thomas founded the group, while the remaining members found their way to each other gradually.

At first, the band performed standard a cappella fare. Later, its members discovered that each had a talent for mimicking instruments.