Jessie J

The diagnosis and the sixth album

In June 2025, Jessie J announced she had been diagnosed with early-stage breast cancer. She underwent a mastectomy, and the treatment reshaped her year: tour dates were postponed or cancelled, and a second breast cancer surgery was put on the calendar. She kept working anyway. On November 28, 2025, she released Don’t Tease Me with a Good Time — her sixth studio album and her first full-length project in almost eight years — calling it a journey “of grief to joy” and saying the songs were meant to “hold the hand of anyone in need of a soundtrack to a good or bad time.” In May 2026 she told fans she was cancer-free after her annual check-up. That September she announced a “digital cleanse” from social media — time to rest, heal and have a second reconstruction surgery. (People; Contactmusic)

Looking back on the two years in that September post, she listed the milestones plainly: putting out an album for the first time in eight years, moving country from the U.S. back to the U.K., “being diagnosed and beating breast cancer,” touring the world, going through a breakup, raising a toddler, and doing her own socials, styling, hair and makeup every day. “It’s no secret that the last 2 years have been magical, successful, life changing and extremely busy,” she wrote. “I have loved the last 2 years mostly, hated it in moments and learnt the most I have ever learnt about myself.” (People)

The breakup she mentioned was with Chanan Safir Colman, her partner and the father of her son Sky, then three. They announced their split about a month after she shared the cancer-free news. The album, recorded with collaborators including Ryan Tedder, Jesse Boykins III, los hendrix and Marty Maro, was followed by a rescheduled U.K. and European acoustic tour in 2026 — Birmingham on April 7, the London Palladium on April 8, wrapping in Brussels — after the original dates were postponed so she could have the second surgery, which was itself then delayed. (People; Contactmusic)

The West End kid who became a hit songwriter

She was born Jessica Cornish in Chadwell Heath, London, on March 27, 1988 — credited in some places as Jessica Ellen Cornish. She started in show business at about 11, performing in the West End production of Andrew Lloyd Webber’s Whistle Down the Wind, then studied musical theatre at the BRIT School. Her first record deal, with indie label Gut Records, collapsed when the label went bankrupt before releasing any of her music. (AllMusic)

After a minor stroke at 18, she won a Sony publishing contract and found her footing writing for other people — Chris Brown, Dutch X Factor winner Lisa Lois, and Miley Cyrus, for whom she co-wrote the U.S. number two hit “Party in the U.S.A.” That songwriting run built the online following that led to a deal with Universal Records, and to sessions with hitmaker Dr. Luke, rapper B.o.B and producer Labrinth for her debut album. (AllMusic)

Six top tens and a global smash

Her debut single, “Do It Like a Dude” — originally written for Rihanna — arrived in 2010. The following year she won the Critics’ Choice award at the BRITs, following Adele, Florence + the Machine and Ellie Goulding, appeared on Saturday Night Live, and released her debut album Who You Are. She became the first U.K. female solo artist to score six Top Ten singles from a single studio album, with the sixth, “LaserLight” featuring David Guetta, helped along by her new prime-time role as a coach on The Voice U.K. alongside Tom Jones and will.i.am. In June 2012 she performed at Queen Elizabeth II’s Diamond Jubilee Concert. (AllMusic)

Her second album, Alive, followed in September 2013 with the singles “Wild” and “It’s My Party.” Then came the song that made her a global name: “Bang Bang,” the 2014 lead single from Sweet Talker, recorded with Ariana Grande and Nicki Minaj. It debuted at number one in the U.K. and reached the Top Ten in the U.S., Canada, Australia, New Zealand and Bulgaria. Sweet Talker arrived in October 2014 and reached the Top Ten in both the U.S. and the U.K. She spent 2015 coaching on The Voice Australia and touring behind the album. (AllMusic)

The quieter years

New singles “Real Deal” and “Queen” appeared in 2017, and then she took an unusual detour: competing as a contestant — the only one not based in Asia — on China’s I Am a Singer in 2018, and winning it that April, the first non-Chinese singer to do so. She issued the four-part R.O.S.E. album in EP-sized chunks that May and the holiday record This Christmas Day at year’s end, then judged the third season of The Voice Kids U.K. in 2019. “I Want Love” arrived in 2021, and in 2025 she followed it with the singles “No Secrets” and “Living My Best Life” — the songs that would land on the sixth album. (AllMusic)

Her personal life drew its own headlines. She dated actor Channing Tatum from 2018 to 2020, and when speculation arose that the Don’t Tease Me with a Good Time track “Threw It Away” was aimed at him, she corrected the record herself on Instagram: “Threw it away is NOT about @channingtatum I NEVER said it was,” adding that they had ended their relationship on good terms and that he “was never a beast” to her. (Contactmusic)

What this profile does not claim

• It does not state how many countries “Price Tag” topped, because that figure could not be verified from a fully-read source.
• It does not claim a Grammy nomination for “Bang Bang.” That, too, appears only in secondary summaries.
• It does not repeat the Guardian-interview details of the diagnosis — the biopsy date, the “high-grade cancer cells” phrasing, her quoted reaction — because the interview itself could not be read in full, only third-party summaries of it.
• It does not give her son’s exact birth date.
• It does not confirm whether the second reconstruction surgery scheduled for September 2026 went ahead as planned.
• It does not describe the album’s label arrangement or its U.K. chart position, for the same reason: snippet-level sources only.