Rowland looking for X Factor star to rival Gaga

Kelly Rowland wants her 'X Factor' stars to be "bigger than Lady Gaga".

The 'When Love Takes Over' hitmaker – who is heading up the Girls' category on the ITV1 show – explained while her fellow judge Tulisa Contostavlos is looking for the next big UK artist, Kelly is looking for someone to rival the likes of Beyonce Knowles.