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Parents waded into the fight between two high school cheerleading teams after the contest descended into violence.

Hair was pulled, there were blows to the head and one girl was left with a fat lip after the tense dance battle boiled over.

Worried parents streamed from the stands – at the US football game – but quickly became embroiled in the melee.

(Image: FOX 4)

The two drill teams had stayed on the Dallas football pitch for an after hours dance battle.

A 13-year-old member of the James Madison Trojanettes went up and performed an aggressive dance very close to a Shamyra Cooper – a 15-year-old member of the Wilmer Hutchins Blue Bells.

Shamyra – who claims her personal space was invaded – turned her back on the dancer – who appeared to respond by flicking Shamyra's hair – and striking the back of her head.

(Image: FOX 4) (Image: FOX 4)

Temperatures rocketed in seconds – with parents flooding onto the scene – and blows were exchanged.

Shamyra's mum – Deshannon Roberts – told Fox 4 News: “You do have a personal space in which you are supposed to respect.

“That was not respected so it was heated at that point.

"I immediately leaped over the rail and ran to the field – trying to get my baby.

"By that time it was chaos.”

(Image: FOX 4)

Dallas Independent School District said: "Impromptu dance-offs are not part of the approved performance for dance teams and fighting is never acceptable.

"Disciplinary actions will be taken as appropriate."

A mass pillow fight for army cadets turned into a bloody brawl that left 24 with concussion and six more injured earlier this month.