This music video for "Knock Knock" by Brunettes Shoot Blondes is animated entirely on synchronized Apple devices, played in real time. It's the music video that Yahoo Music is calling "the best iPhone/iPad/iMac ad ever", as it features 14 Apple products all interacting in real time. The iPad Mini, a few iPads and a Nano all make appearances, and the action continues to a trio of MacBook Pros. It's an impressive feat of coordination for a two and a half minute video. Brunettes Shoot Blondes refer to themselves "a indie/electro/pop band from Ukraine ... part of the New Ukrainian Independent Scene". They have been around since 2010 and are currently planning a European tour.