One more thing:
It can't get any cooler than k.d. lang singing a Leonard Cohen song at the opening ceremonies and Neil Young performing at the closing ceremonies. These choices showed class and were near perfect.
100% perfection would have been if grumpy Neil wouldn't have performed an own old song he wrote for his first car, but if he would have performed a song by one of Canada's best songwriters ever and one of his early days companions instead: Joni Mitchell. "A Case of You" or "Both Sides, Now" for example would have been fantastic choices imo.