Versatile, Gavin James and Sigrid will be the headline acts at Sea Sessions Surf and Music Festival next summer.
Inhaler - led by Bono's son Eli Hewson - KNEECAP, Eats Everything and Ziggy Alberts have also been confirmed to take part in a jam-packed weekend.
The 2020 edition of the hugely-popular festival in Bundoran, Co Donegal will take place from June 19 to June 21.
Hip hop stars Versatile have established themselves as Ireland's biggest rap group, while Dubliner Gavin James will head to the festival at the tail end of a huge worldwide tour.
Festival Director Ray O’Donoghue said: “We’ve sold out Sea Sessions every year for the past 6 years, and this year promises to be no different.
"We really think this is the strongest lineup yet. All 3 headline acts sell out the 3 Arena, that’s nearly 40,000 fans.
"We’ve some new surprises this year too, with a new area and lots more Skateboarding and Sports activity. We know it’s not even Christmas but we just can't wait until the summer.”
Early Bird tickets for the festival are already sold out, but Day and Weekend tickets will go on sale this Friday through Ticketmaster.
Tickets will start from €119.90 for 3 days and €149.90 to include 4 nights camping, while single day tickets will be available from €59.90.
