'The Voice' Season 7 Finale Spoilers: Top 4 Finalists to Perform; Bruno Mars, Ed Sheeran, Jennifer Hudson and Others to Hit the Stage

"The Voice" U.S. Season 7 finale is going to be exciting with spoilers revealing special performances from well-known singers besides top four finalists hitting the stage one last time before the winner is declared. Four finalists - Matt McAndrew, Chris Jamison and Damien of Team Adam, and Craig Wayne Boyd of Team Blake – will perform one last time this season for America's votes. Dec 15, 2014