Little Mix and The Vamps are on the bill of an upcoming US radio summer concert.

The two British acts will perform at 99.7's Summer Splash event on August 13 at California's Great America.

Little Mix - who are due to release their third album this year - will top the bill.

Also involved are US rapper Flo Rida and Prince Royce.

The Vamps, Tori Kelly and Johnny Maxwell will also perform on the night.

Tickets for the gig are on sale now.

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Watch Little Mix's 'Black Magic' video below: