Will.i.am: I wanted to challenge Griffin
Will.i.am paired 'The Voice' contestant Sophie Griffin with J Marie Cooper because he wanted to "challenge her".
The Black Eyed Peas singer made the shock decision to put the 17-year-old singer through after her battle round performance of 'Firework' by Katy Perry against experienced singer J Marie, 27, last night and admitted he was surprised by good she was.