A girl of 14 who punched a boy in the face in a video watched more than 2.7million times on Facebook cried as she was detained for eight months yesterday.

The blonde schoolgirl had previously told a court her parents’ address was ‘whatever, whatever, whatever, whatever, whatever’.

Wearing tracksuit bottoms and a grey top, the youngster wept and hugged her parents yesterday as she was sentenced for the attack.

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A 14-year-old girl who punched a boy in the face in a video watched more than 2.7million times on Facebook (pictured left and right) cried as she was detained for eight months yesterday

Croydon Youth Court heard how she had been on a youth rehabilitation order for previous offences including grievous bodily harm and intimidating a witness when she was filmed shouting abuse and hitting a ‘vulnerable’ 14-year-old boy.

The footage went viral after being uploaded to Facebook last week. After it was seen by police, the girl – who cannot be named for legal reasons – was arrested the same day and charged with assault.

The court heard the aspiring beautician, who had been undergoing anger management therapy as part of her previous rehabilitation order, suffered ‘public backlash’ and ‘intimidation’ after the video went viral.

But magistrate Ken Ashken told her: ‘This was an extremely unpleasant assault on a vulnerable 14-year-old who did not seek to respond in any way.

‘Despite your young age and the undoubtedly good sides that you have within you, the offence is so serious, in regards to your previous offending, that a custodial sentence is justifiable.’

The child, from New Addington, Croydon, had ‘shown real intelligence and insight’ in asking her lawyer to apologise to the boy on her behalf.

Croydon Youth Court heard how she had been on a youth rehabilitation order for previous offences including grievous bodily harm when she was filmed shouting abuse and hitting the ‘vulnerable’ teenager (above)

Kathryn Hovington, defending, said: ‘She is able to reflect and she knows that she becomes wound up and is unable to restrain herself.

‘She regrets her actions and was not aware of the victim’s vulnerability.’

At one point the girl, who pleaded guilty to common assault, mocks him saying: ‘Are you gonna cry? Are you gonna cry?’

The video, which was played to the court, showed the girl in school uniform dragging a 14-year-old boy by his sweatshirt as she shouts and swears and mocks him using street slang and racial slurs.

She tells the person filming the video: ‘I’m gonna smack this yute’ [a Jamaican slang term for youth].

At one point she says: ‘I don’t want to have to bang you, you’re lucky’ and mocks him saying: ‘Are you gonna cry? Are you gonna cry?’

She appears to warn him over drug deals on a nearby estate, saying: ‘Don’t p*** me off or I will have you on the floor… don’t even p*** me off.

‘You best fix up, sort yourself out and when my bredren [friends] or anyone on this estate comes for a draw you’re not giving them dust, you understand?’

Last week she pleaded guilty to common assault on the boy, who is not shown to retaliate in any way in the video.

At the hearing she gave her parents’ names as ‘Anon’ and their address as ‘whatever, whatever, whatever, whatever, whatever’.

At her sentencing yesterday she was given eight months’ detention in total for the assault and for breaching the rehabilitation order.