It will be the first ever live solo performance for the Girls Aloud member, who will perform her debut single 'Beat of My Drum' to an audience of 50,000 people.
Also announced to play are McFly, Tinchy Stryder and The Midnight Beast. Cast members from The Only Way Is Essex and Hollyoaks are expected to make appearances at the event too.
T4 On The Beach will take place on July 10 at Weston-super-Mare beach with previously confirmed acts including Jessie J, The Wanted, Alexis Jordan, N-Dubz and Katy B among others.
Tickets for the event are on sale now.
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