Tinie Tempah,
Magnetic Man and
We Are Scientists will all appear at this year's Beach Break Live festival.
Other acts on the bill include Katy B, Professor Green, Frankie And The Heartstrings and Dry The River.
The festival, which takes place at Pembrey Country Park from 16-20 June, will also include DJ sets from Mark Ronson, Zane Lowe and Nero.
As well as live music, Beach Break Live also boasts various off-site activities such as surfing, coasteering, wakeboarding and paddle boarding.
(by Holly Frith)