Nick Jonas Teases If He’ll Perform at Blake Shelton and Gwen Stefani's Wedding (Exclusive)

ET speaks with Nick Jonas about the final rounds of ‘The Voice,’ and if we can expect him to perform at Blake Shelton and Gwen Stefani’s wedding. The singer also dishes on who he thinks his biggest competition this season is. ‘The Voice’ airs Mondays and Tuesdays at  8 p.m. on NBC.