Take, for example, these three performances of "Over The Rainbow," Judy Garland's most famous song.
"Over the Rainbow," 1939
"Over the Rainbow," 1955
"Over the Rainbow," 1969
Of course, knowing of Judy Garland's personal struggles with depression and addiction certainly add a layer of tragedy to the song. "If happy little bluebirds fly beyond the rainbow, why, oh why, can't I?" Truly heartbreaking.