Professional songwriters, musicians and producers mentor burgeoning creatives at Smash Studio and Shelter Island Sound, where Rihanna and other celeb artists record. The focus is on empowerment through creation: Campers write and record original songs, and parents can attend open studios in the first week to listen to the tunes’ progress. Each session culminates with a performance at the Slipper Room, and kids take home a CD of their work. Ages 8–18.