The Tears of a Clown
performed by Smokey Robinson & The Miracles

According to FoxFlash, "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 is greeted by her artsy counselors Ethan and Kurt and fellow musically inclined campers, 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."

Andy crashes a fundraiser and ends up adopting 12 dogs; Dwight learns that an auction winner loses money; Nellie learns how to eat a taco.