Singer Dan Tyminski of Union Station (Alison Krauss’ band) tells the story of getting to sing the voice over for I Am a Man of Constant Sorrow for the Coen Brothers film O Brother, Where Art Thou?. When he told his wife, she asked him, “What’s a voice over?”
“It’s where you see George Clooney, but hear my voice,” Dan told her.
“Oh Dan,” she replied, “that’s been my fantasy.”