X Factor finalist Emily Nakanda has been exposed as a happy slapper.

A British tabloid has obtained video footage – sent via mobile phone to children around Emily’s North London home – of the wannabe pop star brutally attacking a another girl.

The video shows Emily – dressed in her school uniform – telling the girl, identified only as Anna, that she is going to tear out her hair.

She says: “If it rips out I’m gonna get blood on my clothes.”

Emily is then seen grabbing the girl by the hair, punching her and shoving her to the ground.

X Factor bosses are currently investigating the incident and will decide whether she can remain on the show.

A spokesperson said: “We in no way condone her behaviour. Our investigations are continuing but at this time we are taking no further action.”