Question: 4:21 ...The Day After is an album produced by man who was the leader of what group? 
Sentence (from "Mistaken Identity (Delta Goodrem album)"): The album produced Goodrem two more number-one singles with "Out of the Blue" and "Almost Here", and the rest of the albums singles; "Mistaken Identity" and "A Little Too Late", became top twenty hits.
Relevant evidence: No