Union J and Collabro have been confirmed to perform at a family event at London's Hyde Park.

The two music acts will play live at a Barclaycard British Summer Time gig at the outdoor venue on June 28.

They're joined on the bill by a series of children's entertainers, such as Dick & Dom, Justin Fletcher and Sam & Mark.

Other acts on the line-up include Brainiac Live!, Horrible Histories and Shaun the Sheep.

The event comes in addition to the British Summer Time gig series.

The likes of Taylor Swift, The Who and Kylie Minogue will headline concerts at Hyde Park this summer.

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Watch Union J perform live below: