DESCRIPTION:
At her concert in Zürich in October 2012, Marian Call introduces herself and plays The Volvo Song:

http://mariancall.bandcamp.com/track/the-volvo-song

The sound system was made for speaking, so it cut out whenever they got too quiet, which limited which songs they could play. Later they moved outside to do an unplugged concert. You can see the whole concert at http://www.youtube.com/playlist?list=PLJ-l6mr1dW0jThzG7TKq9IVy7Wq9TxfHg

The guy on the guitar is Scott Barkan: http://www.scottbarkanmusic.com/