It wasn't until I started playing The Beatles: Rock Band that I realized that the rooftop concert would be a great post.
By the way, The Beatles: Rock Band is, in a word, wonderful. While it plays pretty much just like Rock Band and Guitar Hero, it is visually stunning. As much a work of art as a game, it delivers everything that you'd expect and even more.
Oh, and it's The Beatles, for crying out loud!