[HD] Metric - "Synthetica" 11/14/13 David Letterman

Metric performing "Synthetica" on the Late Show with David Letterman. Buy the album "Synthetica" on iTunes: http://bit.ly/KjbcUK Amazon: http://amzn.to/1dRVqZR Metric: http://www.ilovemetric.com/   / metric     / metric