Watching people dump buckets of ice water on their heads — heck, even watching celebrities dump buckets of ice water on their heads — can get pretty old after a while. Unless those celebrities happen to be Dave Grohl and the Foo Fighters, who used their ALS-ice-bucket-challenge nomination to stage an elaborate reenactment of the climactic prom scene from Carrie. Okay, so they swapped out the bucket of pig’s blood for a bucket of ice water, but otherwise they really committed. Those were definitely real tears from Dave Grohl. A-plus effort all around.