îLESONIQ 2025: Celebrating 10 Years with Headliners John Summit & Illenium

Montreal’s premier electronic music festival, îLESONIQ, is pulling out all the stops for its 10th anniversary! Returning to Parc Jean-Drapeau on August 9 and 10, 2025, this milestone edition promises to be an electrifying celebration of dance music, bringing fans an unforgettable weekend packed with high-energy performances, immersive experiences, and the pulsating beats that have defined the festival over the past decade.

Leading the charge for this year’s lineup are two massive headliners: John Summit and Illenium. Summit, a rising force in the house and techno scene, has been dominating global festivals and dance floors with his infectious grooves and high-energy sets. Meanwhile, Grammy-nominated producer Illenium, known for his emotionally charged performances and bass-heavy melodic anthems, is set to deliver a show-stopping spectacle for his Montreal fans.

The excitement doesn’t just begin on August 9. Fans can kick off the celebration early with îLESONIQ in the City, the festival’s official pre-party happening downtown on Friday, August 8. While details are still under wraps, past editions have featured surprise performances and exclusive sets, making it a must-attend event for those eager to dive into the îLESONIQ experience before the main festival even begins.

For those ready to secure their spot at this highly anticipated event, 2-day festival passes go on sale tomorrow, December 5 at noon. Given îLESONIQ’s track record of selling out quickly, fans are encouraged to grab their tickets as soon as possible.

For tickets and full festival details, visit the official îLESONIQ website.

With a decade of unforgettable memories and legendary performances behind it, îLESONIQ 2025 is shaping up to be the biggest and boldest edition yet. Don’t miss out on celebrating 10 years of electronic music magic in Montreal!