A singing competition reality television show starring Kelly Clarkson, John Legend, Robin Thicke, and Jennifer Nettles as mentors who search for singers to duet with them as they perform in front of a live studio audience.
Overview：A singing competition reality television show starring Kelly Clarkson, John Legend, Robin Thicke, and Jennifer Nettles as mentors who search for singers to duet with them as they perform in front of a live studio audience.
