Answer: Easy Street
"Easy Street" is the villain song of the musical, though you wouldn't guess it by how happy the song's chorus sounds. Miss Hannigan has learned that Daddy Warbucks wants to adopt Annie. This makes Miss Hannigan very upset. Annie had tried to run away from home, and just after she gets brought back to the orphanage, she gets rewarded and not punished. To Miss Hannigan, that seemed unfair. However, her brother walks in with his new girlfriend Lily St. Regis, telling Miss Hannigan that he got out of jail on good behavior and now he wants to become rich. Later, he and Lily come back in disguise, claiming to be Annie's parents. They fool Miss Hannigan, but then they remove their disguises and reveal who they are. They tell Miss Hannigan that they are going to trick Mr. Warbucks into thinking that they are Annie's parents so they can get the $50,000 that he promised them, and that they need Miss Hannigan's help to get information about Annie. Miss Hannigan does this on the condition that she gets half the money.
At both these points in the movie, Miss Hannigan, Rooster, and Lily sing the song "Easy Street" together, a song about tricking people and becoming rich. In the first verse, Rooster and Miss Hannigan sing about what their mother told them. Rooster says that their mom is "Sainted," but then he and Miss Hannigan sing together "We know you're down there listening," which suggests that she is in hell, although I don't know how you can be in hell if you're "Sainted."