The Voice Johnny Hayes: Success on 'The Voice' is 80 percent mental preparation and not all about talent 03/21/2017 Johnny Hayes is heading into The Voice's twelfth-season "The Battle Round" as a member of Adam Levine's team. Read More RELATED NEWS Gwen Stefani confirms Las Vegas residency: "It's happening!"Gwen Stefani and her kids spend spring break in OklahomaGwen Stefani attends Jennifer Lopez's show in Las Vegas TAGS: The Voice Alicia Keys Adam Levine Gwen Stefani
