CHSq announce Notorious lineup as bank holiday headliners

This Summer. Custom House Square. Notorious go back to their roots with their biggest show yet and the return of their first ever Notorious lineup - with the addition of Key4050 as special guests.

a-z

Bryan Kearney

John O’Callaghan

Modea

Standerwick

Will Atkinson

Plus special guest

KEY 4050

The first ever Notorious show back at T13 in 2016 redefined the scale of trance music in Belfast. The brand has since hosted the world’s biggest artists and created a platform for some of Ireland’s own talent who have gone on to have global success.

📍 Sunday 30th August 2026

🎟️ Tickets on sale Friday May 1st at 9am via ticketmaster.ie

Take a look at the other CHSq headliners this summer 👇

Lush! Classical

Following the sold out June show, Lush! Classical announced a second Belfast show due to phenomenal demand at CHSq previously - a magical evening where the Ulster Orchestra meets the biggest dance anthems for a spectacular show that will be quite simply out of this world.

Foy Vance

Following his recent run of sold out Grand Opera House and Waterfront Hall shows, local singer-songwriter Foy Vance presents a very special show at CHSq. Featuring a host of special guests, including musicians Joshua Burnside and Bonnie Bishop, comedian Vittorio Angelone, and poet Jon Plunkett.

The Proclaimers

Scottish music duo The Proclaimers are pleased to announce a return to Belfas to headline Custom House Square next summer. Strikingly individual, twin brothers Craig and Charlie Reid emerged 34 years ago with their debut album This Is The Story and Top 3 single 'Letter from America'.

Faithless

Dance pioneers Faithless are back with their biggest Belfast headline show to date this summer, alongside special guests. From God Is A DJ and We Come 1 to Insomnia and Champion Sound, Faithless' catalogue stands as one of the most influential bodies of work in electronic music history.

Stiff Little Fingers

Following their sold out show earlier this year, Stiff Little Fingers are proud to announce the line-up for their eighth annual hometown festival, Putting the Fast in Belfast 8.


This year, they'll be joined on Saturday, August 22nd by their friends and very special guests The Undertones, Ruts DC, Sabrejets, and DJ Terri Hooley.

IDLES

Multi Grammy-nominated UK rock band IDLES are pleased to announce a return to Belfast for their biggest NI show to date at Ormeau Park. Formed in Bristol in 2009, IDLES are widely recognised as one of the most electrifying, boundary-pushing bands working today.

Wunderhorse

British Rock Band Wunderhorse will headline their biggest Belfast headline show to date at Custom House Square. Wunderhorse have seen their popularity snowball the old-fashioned way; winning fans over through visceral live performances and Jacob Slater's vivid songwriting.

CMAT

Irish singer-songwriter CMAT will perform her largest ever Belfast headline show this summer at CHSq. These Belfast dates cap off a year of live performances for CMAT, who will be promoting her acclaimed third album Euro-Country — a record that brought her widespread acclaim and a Mercury Prize nomination.

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