When Krusty the Clown is announced as the recipient of the Nobel Peace Prize, Homer invites Bart to accompany him on a trip to Oslo for the ceremony. Sensing that Lisa would feel left out, Marge surprises her with a week-long retreat at performing arts camp, where she where she is greeted by her artsy counselors (guest voices Clement and McKenzie) and fellow musically inclined campers (guest voices Michele, Monteith and Riley), who inspire her to embrace her creative side. After she returns to Springfield, Lisa becomes restless with her ho-hum suburban lifestyle and sneaks off to Sprooklyn in hopes of connecting with her inner hipster, but she soon realizes that the city is not the same as camp.