Nile on The Voice is actually Niall Horan, an Irish singer-songwriter best known as a former member of the boy band One Direction. He joined The Voice as a coach starting in Season 23, quickly gaining acclaim by leading his team to win in both Season 23 and Season 24. Niall Horan is recognized not only for his music career but also for his impactful role mentoring contestants on the show. He returned as a coach for Season 28, continuing his presence on the popular NBC singing competition.