"Miranda is an amazing artist and it will be fascinating to see her blend her talents with those of Dia," Paul Telegdy, NBC and Universal Media Studios' executive vice president of universal programming, tells Us Weekly in a statement. "This special duet is what The Voice represents to our audience. Together, Miranda and Blake, who represent a true power couple in country music, will help provide a memorable finale for our first season."
Adds Lambert, 27: "I am thrilled to perform on my favorite new show. It's been a joy watching my husband grow so attached to his team. Truthfully, I am a little jealous that I am not a coach myself. I can't wait to be a part of it."