Plain White T's will play Slam Dunk Festival 2019 at Hatfield.
Organisers of Slam Dunk Festival South have added another wave of bands set to rock Hatfield Park on Sunday, May 26.
Among the latest names confirmed for the touring pop punk, ska punk, metal and alternative festival are Plain White T's, US indie-rockers Hellogoodbye, Los Angeles group Touche Amore and Canadian alt-pop sensation Lights.
Making their debut Slam Dunk Festival performance this year, Plain White T's are best known for single Hey There Delilah.
The American quintet return to UK shores with latest album, the energetic Parallel Universe.
Singer-songwriter Lights will also make her debut Slam Dunk Festival performance this year.
Her latest album, the ethereal Skin & Earth, won Juno's 2018 Pop Album of the Year award.
She said: "I'm so pumped to be on the Slam Dunk bill for the first time.
Forrest Klein of Hellogoodbye is also delighted to be joining the Slam Dunk party in Hatfield and Leeds this late May Bank Holiday weekend.
He said: "We're totally giddy to be invited over to Slam Dunk this year!
Others announced include Tigers Jaw, Atlanta-based rockers Microwave, Wallflower and Wage War.
Proving that there's more to Scranton, Pennsylvania, than a fictional paper company, Tigers Jaw deliver emotionally-driven anthems.
Fearless Records favourites Wage War will arrive at Slam Dunk with a debut album produced by Andrew Wade (Motionless In White, Neck Deep) and A Day To Remember's Jeremy McKinnon.
After touring with the likes of August Burns Red, The Amity Affliction and Every Time I Die, the Floridian metal troupe have learnt from the best.
Continuing the heavy, Employed To Serve and Our Hollow Our Home will represent the very best in the UK metal at Slam Dunk Festival.
Tickets for the all-day festival cost £59 plus fees.
Slam Dunk Festival South will take place in the grounds of Hatfield House in Hertfordshire on Sunday, May 26.
Slam Dunk Festival North is set to move to a new parkland site in Leeds' Temple Newsam Estate on Saturday, May 25.