Lambert, a Grammy winner for her single "The House That Built Me," said she was "thrilled" to be part of "The Voice." She said she's a bit jealous of her husband's role as a coach on the hit singing contest, which also features Christina Aguilera, Maroon 5's Adam Levine and Cee Lo Green.

Country superstars Lambert and Shelton were married last month. The other finalists are Javier Colon, Beverly McClellan and Vicci Martinez. The four singers will perform next Tuesday, with the viewers' choice to be announced on Wednesday.