Afterwards, the second round of blind auditions got under way, as the coaches tried to find "the best singer in America." In Monday's two-hour episode, each coach acquired an additional two contestants for what will eventually become 12-person teams. Four of the hopefuls didn't make it to the next round.
Here's how the rest turned out.
Aguilera picked up country duo Haley and Leland, which prompted Shelton to joke, "I actually feel bad for them. I think they were fooled by flash and boobs." The pop star also snagged singer Lindsay Pavao, who performed a Trey Songz track.
Green got paired with Jamar Rogers, 29, a former drug addict from New York, who is HIV positive and now volunteers at a food-delivery service. The "Forget You" singer also went with Air Force staff sergeant Angie Johnson, after her performance of Pat Benatar's "Heartbreaker."
Shelton, meanwhile, will mentor country singer Gwen Sebastian, as well as Jermaine Paul, a backup singer who has worked with Alicia Keys. Paul did a version of Avril Lavigne's "Complicated."
And finally, Levine will coach 50-year-old Kim Yarbrough, who impressed the judges with a version of Rufus and Chaka Khan's "Tell Me Something Good." The Maroon 5 frontman also got paired with 23-year-old Angel Taylor, who sang Adele's "Someone Like You."
Monday's episode aired one night after the season two premiere, which attracted a record 36.7 million viewers thanks to theBlind auditions will continue when "The Voice" airs next Monday on NBC. .
Tell us: What did you think of the second episode of "The Voice"?