LOS ANGELES, June 19 (UPI) -- NBC's The Voice is handily beating American Idol in the ratings game. But unlike its Fox predecessor, which can claim Kelly Clarkson, Carrie Underwood and Jennifer Hudson among its success stories, The Voice has yet to produce any major music stars.
In the latest issue of Rolling Stone, Voice coach Adam Levine acknowledged that the show had "problems" nurturing commercially successful talent.