I just saw Steven Tyler sing "God Bless America" during the seventh-inning stretch at the Red Sox home opener at Fenway.
Update [5:19pm] Now, they have Neil Diamond on video doing "Sweet Caroline". He's looking more like Richard Feynman every day.
Update [5:43pm]. They won, 5-0. After that, how could they not? Apparently Bill Buckner threw out the first pitch to Dewey Evans, as well.