Ads that do stuff Part 2

Concerto Timer: is an advertisement created for Häagen-Dazs by Goodby Silverstein and Jam3 that puts two classical performers atop your ice cream pint while viewed through their iOS app.  If you have two pints, you get two performers. The performers play for 2 minutes, the ideal time to have your ice-cream sit in room temperature to become perfect for consumption. It might also get you to buy two pints...