Prepare for a weekend of cinematic soundscapes, soaring vocals and symphonic wonder as the historic town of Trim hosts the King John Summer Prom Festival, August 8 - 10, 2025. With almost 300 performers from Ireland and beyond, it’s set to be the largest orchestral festival on the island of Ireland.
Set against a backdrop of the iconic Trim Castle and the picturesque River Boyne, this landmark cultural celebration brings together world-class musicians, film legends, local talent and thousands of visitors for an unforgettable summer spectacle.
Friday, August 8 @ 8pm - Voyage: Ireland in Song An epic orchestral journey through Ireland’s rich musical heritage where tradition meets contemporary orchestra, produced by award-winning musician Niall O’Sullivan. This breathtaking evening features an all-star lineup:
Patrick Bergin – Hollywood legend and acclaimed Irish actor
Leah Barniville – Britain’s Got Talent finalist
Emmet Cahill – PBS Celtic Thunder star and internationally acclaimed tenor
Shóna O’Sullivan – International singing sensation
Kathy Crinion – Renowned for her stunning and emotive performances
Saturday, August 9 @ 2.30pm - Heroes and Legends A soaring matinee concert with the 65 piece Irish Philharmonic Orchestra conducted by Niall O’Sullivan, celebrating the music of cinema’s greatest composers - including John Williams, Hans Zimmer, James Horner, Howard Shore, Ennio Morricone and more.
As evening falls, witness a special 30th anniversary outdoor screening of Braveheart - filmed on-site in Trim - with original cast members returning to honour the film that left an indelible mark on Irish and global cinema.
Sunday, August 10 @ 1pm - Orchestral Odyssey A family friendly celebration of orchestral music, filled with fun, education and entertainment for all ages. Audiences will be treated to vibrant performances and engaging musical storytelling, the Irish Philharmonic Orchestra (made up of the finest musicians in Ireland) will be joined by over 100 kids from Glitz Performing Arts and Elite Stage School showcasing young talent and the next generation of Irish performers.
Sunday, August 10 @ 8pm - Neil Diamond’s Hot August Night In Concert The festival closes with a show-stopping finale: Peter Byrne’s tribute to Neil Diamond’s Hot August Night, performed with The Irish Philharmonic Orchestra - a powerful and passionate end to a weekend of music and magic.
A Festival Like No Other… With almost 300 performers, the King John Summer Prom Festival is a groundbreaking blend of classical music, film, and community celebration. It’s more than a festival - it’s a moment in Irish cultural history.