"We at Oh Yeah Wow are a rag tag pack of unlicensed pyrotechnicians, unappreciated comedians and unknown celebrities specialising in animation, visual effects and film. In a landscape inhabited by sharks creating heartless, derivative content, Oh Yeah Wow sails the boat of freedom on the waves of integrity aided by the delicious North winds of determination. Collectively we pursue magic, excellence, innovation and the occasional intake of vitamin D"

http://ohyeahwow.com/

The first video that introduced me to this company is for the music video "Easy Way Out" by Gotye, I love how it seamlessly follows the character around the room in an animated way. Plus they've added in extra animations into the mix which makes every spin round the room a new experience, and the amount of versions of the main character all mixing with each other amazes me.

The next one I saw was for the band Paper Kites and their song "Young", it shows the portraits of hundreds of different people which all line up perfectly to mouth the words of the song. You do have to have a bit of imagination to make it match but it does work, it's a stunning piece of work and you can tell it took time and effort.