Taylor Swift, Ed Sheeran and Noel Gallagher have been named as some of the acts performing at Radio One's 'Biggest Weekend' festival.
The new event will be taking place in Swansea, Perth, Belfast and Coventry.
Tickets will go on sale on February, 12 for £18 plus £4.50 booking fee.
More acts will be announced, with the festival taking place from Friday 25 to Monday 28 May.
Swansea Council tweeted the news.
Celebrities have also been celebrating the news on social media including DJ Scott Mills.
Fans have been responding to the news of the festival coming to South Wales.