I've just been going through Youtube listening to some music, when i came across the new music video for Chris Brown's, I can transform ya. I actually love it, the way they transform into machines and vehicles, as well as the cool dancing. But, in terms of CG, compositing and chroma keying, i was pretty amazed, although it's nothing less than what i'd expect from professionals. AWESOME!!!
check it out... http://www.youtube.com/watch?v=roYeMcuhe5I