Casanova joins Fetty Luciano on a new single…. Fetty Luciano is another NYC rapper trying to stand out, among many in the city. This one represents Harlem and he has a wave, right now. Teaming up with Casanova, he delivers “What We Doin,’” as his latest single. Listen to “What We Doin’” by Fetty Luciano ft. Casanova below: