A new boy band doesn’t usually start with Simon Cowell, a Netflix series, and a name that’s literally a date, but December 10 did!
Seven members were pulled together for their voices, chemistry, and personality, and the result is a group with instant lore, big moments, and seven very different stories behind the vocals.
Here are 50 fun facts about December 10, from the early milestones to the details you’ll want to know about Cruz, Danny, Hendrik, John, Josh, Nicolas, and Seán.
December 10 formed on Netflix’s Simon Cowell: The Next Act, where Cowell built a seven-member boy band from auditions.
Their name “December 10” comes from the Netflix series’ release date, December 10, 2025, and it is basically the band’s on-screen anniversary.
After over a thousand audition performances, Simon Cowell narrowed his search to 16 singers, who headed to Miami for in-person tests of their vocals and group chemistry.
Simon Cowell originally aimed for a five-member lineup, but settled on seven because he didn’t want to make any further cuts.
Their final seven members are Cruz, Hendrik, Seán, John, Josh, Danny, and Nicolas, each chosen for a different vocal tone and personality.
After the band’s name was announced, Scottish metal band “December Tenth” said fans were confusing the two acts, and asked Simon Cowell, Netflix, and Universal Music Group to contact their legal team.
Fans quickly nicknamed the group “D10,” a shortened name that even Netflix Tudum has used. Tudum is Netflix’s official fan site, named after the “tudum” sound you hear when Netflix starts.
Their first official release, uploaded to YouTube on December 15, 2025, was a live acoustic cover of *NSYNC’s “Bye Bye Bye,” which reached 250,000 views within three days.
December 10 signed with EMI Records in December 2025, joining a UK label under Universal that has also worked with artists like Taylor Swift, The Killers, and Tears for Fears.
December 10 announced their first UK and Ireland live shows on January 12, 2026, which sold out within minutes, then added eight extra performances over the following days, expanding the run from 5 dates to 13.
On January 23, 2026, Toyota became December 10’s first major brand partner, headlining their sold-out live dates and featuring “Run My Way” in its Aygo X Hybrid campaign.
Their debut original single, “Run My Way,” was released on January 30, 2026, and entered the UK Official Singles Chart at No. 72 that week.
“Run My Way” was written by Savan Kotecha and Rami Yacoub, who have also worked with Ariana Grande, Ed Sheeran, Lady Gaga, and Britney Spears.
December 10 are more than just singers, as the seven members can play 14 instruments between them, including guitar, drums, bass, piano, harmonica, clarinet, and percussion.
The band’s first official Meet & Greet event, called “Meet the Band,” was held at UMusic Shop Camden on February 1, 2026, where ticket-holding fans could meet the boys, chat with other fans, and take photos.
Cruz Lee-Ojo
Cruz Lee-Ojo is 19 years old. He was born on April 3, 2006, in Uxbridge, London, making him the oldest member of December 10.
He grew up loving the boy band JLS and said he also wanted to make people happy through music. He’s also said Bruno Mars and Drake are his inspirations.
Before December 10, Cruz had a musical theatre background and performed in London’s West End as part of the child cast of Motown: The Musical, sharing roles including young Michael Jackson, Berry Gordy, and Stevie Wonder.
For his audition song on The Next Act, Cruz performed Paul Russell’s “Lil Boo Thang,” impressing the panel and earning praise for his performance as well as his singing.
On Instagram, Cruz has described himself in his bio as “The Swaggiest Member in December 10.”
Hendrik Christoffersen
Hendrik Christoffersen is 19 years old and was born on July 8, 2006, in Walsall, West Midlands, England, UK. He was born in the Chinese Year of the Dog.
Hendrik’s mum, Zoe Christoffersen, was a professional vocalist for several years, and he has credited her as a big musical influence. She now works as a Family and Carers’ Support Officer at Walsall Manor Hospital.
He’s the youngest of three and has two older brothers, Jo and Hansen.
Following his brothers, Hendrik played rugby at Walsall Rugby Club from the under-7s age group, moved up through the youth teams, and even reached the club’s senior team before music took priority.
Before joining the band, he was contacted via TikTok to audition and later shared that he had been writing and performing solo throughout much of his teens.
Seán Hayden
Seán Hayden is 19 years old and was born in Dublin, Ireland, on November 7, 2006, making his star sign Scorpio.
Seán started singing when he was four years old, and he has said Justin Bieber was a major early influence.
At age 13, he was Head Chorister of The Palestrina Choir at St. Mary’s Pro-Cathedral in Dublin. With the choir, he has toured internationally and performed in venues including Croke Park, the European Parliamentin Brussels, La Sagrada Familia, and St. Peter’s Basilica in Rome.
Before December 10, Seán was credited as the boy soprano in the short opera film Her Name with the RTÉ Concert Orchestra, and he has also appeared in This Way to Christmas and played the lead in Oliver.
His mum, Christine, has been especially supportive. She even signed him up for the Netflix show, where he auditioned with Benson Boone’s “Beautiful Things.”
John Fadare
John Fadare is 17 years old. He was born on July 21, 2008, in Rochester, England, UK.
At age 7, John joined the Rochester Cathedral Choir, where he learned to sing classically, read music, sing as part of a group, and perform in front of an audience.
He started writing songs when he was just 10, and performed them at his school in Rochester. He later said that was the moment he knew he wanted a career in music.
On October 28, 2023, John received the Arts Award from the Medway Afro-Caribbean Association.
John turned down a role in Paddington: The Musical so he could audition for The Next Act, where he performed Shawn Mendes’ “There’s Nothing Holdin’ Me Back.”
Josh Olliver
Josh Olliver is 17 years old and was born on November 1, 2008, in Chorley, England, UK. His star sign is Scorpio, and he was born in the Chinese Year of the Rat.
Josh attended Holy Cross Catholic High School in Chorley with fellow bandmate Danny, although they had been friends long before secondary school.
Josh has said he used to sing in his room all the time, but only started taking singing seriously around age 15, when he began performing at gigs.
Josh hit a few bumps on The Next Act. He stumbled over the lyrics while auditioning with the Backstreet Boys’ “As Long as You Love Me,” then struggled with his self-image in Miami until Danny gave him a hotel-room buzz cut that gave him a boost in confidence.
He told Netflix Tudum that his all-time favorite boy band is One Direction. He’s also a huge fan of Justin Bieber.
Danny Bretherton
Danny Bretherton is 17 years old. He was born on December 15, 2008, making his zodiac sign Sagittarius.
He grew up in Chorley with no musical background and is the first in his family to pursue music as a career.
He first got into music after being expelled from school. He wanted to find something that he loved, and his auntie has always encouraged his singing.
One of Danny’s favourite summer memories is running a car wash with Josh. They even gave their little business a name, “JD Super Soakers.”
In July 2023, Danny appeared on ITV’s The Voice Kids (Series 7). At age 14, he sang “Naive” by The Kooks in the Blind Auditions and joined Ronan Keating’s team.
Nicolas Alves
Nicolas Alves is 17 years old, he’s the youngest member of the band, and was born on January 27, 2009, making his star sign Aquarius.
He was born in London, England, and at age 10, he moved to Torres Vedras, near Lisbon, Portugal.
In summer 2022, Nicolas finished runner-up on Season 3 of Portugal’s The Voice Kids on RTP1, and that result helped put him on the radar for Junior Eurovision later that year.
Nicolas represented Portugal with “Anos 70” at the Junior Eurovision Song Contest 2022, finishing 8th with 121 points, which was Portugal’s best-ever Junior Eurovision result. He famously almost fell off the stage during his performance.
On The Next Act, the judges compared Nicolas to “a young George Michael,” and since the show, fans online have also likened his look to Harry Styles.
Whether you found December 10 through Netflix, TikTok, or a friend who would not stop talking about them, the band’s story is already full of moments worth knowing.
We decided to keep the drama involving BTS out of these facts; we’re not here to pick a side or keep that going. If anything, let the music and the milestones do the talking!
If you ever need one place to get your bearings on who’s who and what’s happened so far, these 50 facts have you covered.