Gwen Stefani & Sia Perform Tonight on NBC's THE VOICE

Coach Gwen Stefani and multiple award-winning recording artist/hitmaking songwriter Sia will perform tonight, Nov. 30 and tomorrow, Dec. 1 telecasts, respectively, of NBC's Emmy Award-winning musical competition series "The Voice."

Stefani has achieved worldwide success as a performer, songwriter and recording artist selling more than 30 million albums worldwide with No Doubt and as a multi-platinum solo artist. Stefani released two highly successful solo albums - "Love.Angel.Music.Baby" and "The Sweet Escape" - featuring hit singles "Rich Girl," "Sweet Escape," "What Are You Waiting For?" and "Hollaback Girl," a #1 single she recorded with fellow "Voice" coach Pharrell Williams that became the first digital download to sell more than 1 million copies in the United States.

In addition to her singing-songwriting career, Stefani is widely recognized as a trendsetter and accomplished designer within the fashion industry launching several successful brands, including L.A.M.B., Harajuku Lovers, DWP and GX.

Sia will perform the single "Alive" from her upcoming album "This Is Acting" (Monkey Puzzle Records/RCA Records), due Jan. 29. Stefani will sing her current single "Used to Love You" (Interscope Records), which is currently available on digital download and streaming via digital subscription services.

In addition to Jesse Shatkin, who produced "Alive," Sia worked with longtime collaborator and producer Greg Kurstin on "This Is Acting." "Alive," the album's first single, was written by Sia, Adele and Tobias Jesso Jr. and was produced by Shatkin, who also co-wrote and co-produced Sia's massive four-time Grammy-nominated "Chandelier."

Sia released her #1 charting, critically acclaimed and gold-certified album "1000 Forms of Fear" last year, which features her massive BREAKTHROUGH singles "Chandelier" and "Elastic Heart." The groundbreaking video for "Chandelier" has enjoyed an unprecedented 1 billion views and its follow-up video, "Elastic Heart," has more than 450 million views.

So far this season, the Monday and Tuesday editions of "The Voice" are averaging a 3.7 rating, 12 share in adults 18-49 and 13.3 million viewers overall, according to "most current" results from Nielsen Media Research through the season's opening nine weeks, to lead NBC to #1 ranking among the broadcast networks on both Monday and Tuesday nights. "The Voice" is television's #1 alternative series this fall in every key ratings measure - adults, men and women 18-34, 18-49 and 25-54, plus total viewers.

"The Voice" is a presentation of United Artists Media Group (an MGM company), Talpa Media USA Inc. and Warner HORIZON Television. The series was created by John de Mol, who serves as executive producer along with Mark Burnett, Audrey Morrissey, Lee Metzger and Jay Bienstock.

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