December 10 Celebrate Their 6-Month Birthday with Announcement of Their Debut EP, on Your Side

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Today, marking their 6-month birthday, Britain’s brand-new boyband December 10 have announced the release of their debut EP, On Your Side, which will be available to stream on all platforms and released on cassette, CD and limited-edition vinyl on 10 July.

“Feels insanely good to be releasing a body of work and to be able to share with the world what we’ve been in the studio working on for the past 8 months. Feel so damn lucky to have worked in studios in cities across the world with some of the best producers in the world. What is life!! We really hope people love it as much as we do.” – December 10

December 10’s announcement of their debut EP, On Your Side, released via EMI Records on 10 July, arrives hot on the heels of the band performing “Run My Way”, “Infinity (123)” and “EndOf The Beginning” at Capital FM’s Summertime Ball over the weekend, and ahead of their upcoming headline UK & Europe tour, December 10: The Next Step, which kicks off on 26 June in Amsterdam and wraps up on 21 July in Dublin (see full list of dates below).

Produced by Julian Bunetta (Gracie Abrams, Sabrina Carpenter, Teddy Swims), Poo Bear (DJ Khaled, Justin Bieber, Usher) and Savan Kotecha (Ariana Grande, Katy Perry, The Weeknd), December 10’s On Your Side was recorded across L.A., London, Nashville and Stockholm. The EP features brand-new songs “On Your Side”, “Us Against The World” and “What Are We Now”, alongside the recently released single "Infinity (123)" and stripped-back versions of “Angel” and “Run My Way”.

December 10 - Cruz (20), Danny (17), Hendrik (19), John (17), Josh (17), Nicolas (17) and Seán (19) - formed on camera during Netflix’s docuseries Simon Cowell: The Next Act (released worldwide on 10 December 2025), and have quickly built a devoted fanbase through their live shows and social media presence since signing to EMI Records. Six months on from their reveal on the global series, the hugely fun and charismatic septet have already packed more into their career to date than many acts manage in years.

With just three singles released, December 10 have already amassed over 26 million streams, 19.2 million YouTube views and 3.3 million social media followers. They’ve also entered the Top 10 Official best-selling vinyl singles of 2026 so far, sold out their Introducing! run of UK and Ireland dates in February within minutes - with extra shows added twice in response to demand - and performed a sold-out O2 Priority show at O2 Shepherd’s Bush Empire, where demand exceeded capacity fourfold. Internationally, they made their festival debut at Ultra Teens Fest Japan, performing to a 12,000+ crowd, and have since been added to the bill for Summer Sonic Festival in Japan and Reading & Leeds Festival in the UK.

As their rapidly growing fanbase continues to spread across the UK, Europe and beyond, December 10 have already attracted attention from major global brands. Last month, the band teamed up with Primark for an exclusive merchandise collection available across the retailer’s UK and European stores. The collaboration marked a full-circle moment for band member Seán Hayden, who previously worked at Penneys (as Primark is known in his native Ireland). Earlier this year, their debut single “Run My Way” featured in Toyota’s pan-European campaign for the New Aygo X, with the brand also partnering with the group on their first run of live shows.

December 10 are not just brilliant singers, but accomplished musicians too, playing 14 instruments between them: Nicolas plays guitar and harmonica; Danny plays guitar; Josh plays guitar, cajón and drums; Hendrik plays guitar, bass and piano; Seán plays guitar, piano and harmonica; while John was due to take Grade 8 clarinet and piano this year - until life got a bit busy.

December 10 is very much a boyband for our times: a truly inclusive group representing Chorley, Rochester, Dublin, London, Lisbon and Walsall, with Irish, Brazilian, Indian, Nigerian and Jamaican heritage between them. Their musical influences are just as expansive - from Fela Kuti, Daft Punk, Brent Faiyaz and Steve Lacy to Pearl Jam, Freddie Mercury, The Notorious B.I.G., Catfish and the Bottlemen, Sabrina Carpenter, Usher alongside Brazilian icons like Legião Urbana and Cazuza.

Fun, high-energy and utterly endearing, December 10 are rapidly carving out their place among Britain’s most talked-about new pop bands.

DECEMBER 10’S ON YOUR SIDE EP, RELEASED VIA EMI RECORDS ON 10 JULY, IS AVAILABLE TO PRE-ORDER ACROSS ALL PLATFORMS NOW

DECEMBER 10’S ON YOUR SIDE EP TRACKLIST
1. Run My Way 2. Angel 3. Infinity (123)
4. Us Against The World 5. On your side 6. What Are We Now 7. End of Beginning 8. Angel (Stripped)
9. Run My Way (Stripped)

DECEMBER 10: THE NEXT STEP HEADLINE TOUR
Fri 26 June (matinee) - Tolhuistuin, Amsterdam ***newly added***
Fri 26 June (evening) - Tolhuistuin, Amsterdam ***sold out***
Sat 27 June - Kavka Zappa, Antwerp Mon 29 June - Frannz Club, Berlin Tue 30 June - Luxor, Cologne ***sold out***
Wed 1 July - Les Etoiles, Paris Fri 3 July - Sala Wolf, Barcelona ***sold out***
Sat 4 July – Sala Mon, Madrid ***sold out***
Sun 5 July - LAV Sala 1, Lisbon ***upgraded***
Fri 10 July - Assembly Rooms, Edinburgh ***sold out***
Sat 11 July - O2 Academy Liverpool, Liverpool ***sold out***
Sun 12 July - Styles, Leeds ***sold out***
Mon 13 July - Electric, Sheffield ***sold out***
Wed 15 July - Wulfrun Hall, Wolverhampton ***sold out***
Thu 16 July - O2 Academy, Bristol ***sold out***
Fri 17 July - O2 Shepherd’s Bush Empire, London ***sold out***
Sat 18 July - O2 Shepherd’s Bush Empire, London ***sold out***
Mon 20 July - Ulster Hall, Belfast Tue 21 July - National Stadium, Dublin ***sold out***

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