Its been on for a little while I know, but Adidas have done something remarkable recently. Produced an ad that uses a major celebrity in a way that is absolutely engaging, and in no way tacky.
The recent 'Impossible is Nothing' ads with David Beckham explaining about his high and low moments is wonderful. You get a real sense of personality and emotion that you rarely see on any ad, let alone a celebrity endorsed one.
Not only has it made me think more positively about the Adidas brand, it makes me think more positively about David Beckham. Showing the true nature of a person behind their wonderful abilities.
Here is a very long version, I couldnt find the shorter tv one at the moment.