Kelly unsure about X Factor return

Kelly Rowland is unsure whether she will return to 'The X Factor' next year.

The 'When Love Takes Over' hitmaker – who clashed with co-judge Tulisa Contostavlos when the N-Dubz singer branded Kelly's act Misha B a "bully" live on TV – will have to think seriously about coming back for a second series of the ITV1 show because she doesn’t know whether she could put herself through the emotional stress again.