How old you are?
American Pie is a grand send off. One of the most recognizable songs ever that covers one of the most tragic events in music history. As depressing as the topic may be, it's meant to be a send off(a toast) to some of the greatest entertainers of all time. I think it's ironically fitting.
Rock Band 3 had it's flaws, but it was still without a doubt the greatest music game of this generation. I miss tour mode as well, but saying Rock Band 3 sucks because you can't make a fat character or it costs too much is like saying a mustang is a piece of sh*t because it costs too much and is too loud.