Estelle added to the V festival

Estelle topped the singles chart with American Boy

Chart topper Estelle, Sam Sparro and Scots dance producer Calvin Harris have all been added to the V Festival line-up.

The event is held at two sites in Chelmsford and Staffordshire over the weekend 16-17 August.

This year's festival will be headlined by Brit winners Muse, playing their only UK festival date, and Glastonbury headliners, The Verve.

Amy Winehouse is also due to play both venues.

The other new additions to the line up include Captain, Presets and Alphabeat.

Punk legends The Stranglers, Royworld, Delays, Michael Franti and Spearhead, The Script and Air Traffic.

Tickets for the event are still available.