Imogen Heap - "Aha!"

Imogen Heap is one of my favorite musical artists, and is one of the few pop stars who I consider a true musician. There are intermittent cello parts during the song "Aha!" on her CD, Ellipse. Imogen Heap decided that while she was touring the CD, she wanted one of her fans in the area to come up and perform the cello part of the song with her. Using a live chat tool called Vokle, she held cello auditions where fans could interact and comment while the auditions were taking place. This represents how social tools have lowered organizational costs, making auditions of this nature possible.

http://www.youtube.com/watch?v=Z9_S8nrdERY "Aha!"

http://www.youtube.com/watch?v=21QVivVgbik Clips from the Auditions (Start at 1:41 or later)

http://www.imogenheap.com/cello/ (General information on the competition, including where she distributed the sheet music)