Lisa tries to launch the career of a homeless Appalachian folk singer, but Bart warns her that she will just let her down. Meanwhile, Homer tries to rescue the cat, who is trapped in the walls of the house.
When Bart brings home folk singer Hettie Mae Boggs, who has fallen on hard times, an impressed Lisa decides to relaunch Hettie's career with a come-back concert but Hettie is unreliable and Bart fears she will let Lisa down,. Meanwhile Homer's attempts at DIY lead to his having to rescue the cat, whom he has accidentally walled up.—don @ minifie-1