This video might have been set up, but last weekend the band Bachman-Turner Overdrive performed at halftime during the Canadian Football League's Grey Cup, which is like the Canadian Super Bowl.

--And during rehearsal, some guy with a push broom danced around like crazy in the empty stands . . . then lost his balance and tumbled down the stairs.  (--Search for "janitor falls down bleachers while rocking out."  He falls at 1:18.)