However Mimi Oz was feeling when she made “Caroline,” she was certainly feeling a lot of it. “Caroline” explodes into a rampant euphoria even after its jubilant horn and key passages are established. Critical to the song’s success are Oz’s talents as a vocalist and songwriter, moving through different registers, from forceful growls to awestruck croons, to tell the story of a wayward American spirit trying to find herself, domestically and abroad. We can’t wait to see where Oz’s musical journey takes her next.