Jessie J gave a candid insight into her breast cancer battle during Jools Holland's Hootenanny on New Year's Eve on Wednesday evening.
The Do It Like A Dude hitmaker, 37, appeared on the annual pre-recorded show where she both performed and spoke to the iconic host, 67, about her gruelling diagnosis.
Prior to her breathtaking rendition of Frank Sinatra's My Way, she was asked about her 2025, which saw her reveal in June that she had been diagnosed with breast cancer and subsequently underwent a mastectomy and reconstructive surgery.
She told Jools: 'I haven't been well this year, I've got new boobs, big. We're looking at the positive silver lining. My nipples are looking in different directions, but we look at the positives! For context, I did have breast cancer...
'I know I've been talking about it a lot, but I think it's important that we do talk about it, good things, bad things. But I will say this, don't define your life on your worst days.'
Jessie stunned fans earlier this year when she revealed her heartbreaking diagnosis, which she exposed in forensic detail to support fellow sufferers.
Speaking to Jools, she went on: 'I think this has been tough for a lot of people. It's been the year of the snake (in Chinese zodiac), but we've done a lot of shedding and letting go. And I think the world needed to kind of be exposed a little bit...
'Hopefully for 2026 to be a year of coming together and more empathy, acting on our instincts, more in the right way. I'm so blessed that all my blessings outweigh anything that's been challenging this year...
'Honestly, I wouldn't have enjoyed this release, I haven't released an album in eight years, and I don't think I would have enjoyed it like I have...
'So there's always a silver lining, and I do believe we learn the most about ourselves in the hardest time. So when they come, grab them and learn.'
Earlier in the day Jessie shared a teary end-of-year wrap up with fans on Tuesday as she admitted 2025 was 'one of the hardest' years of her life.
Sharing to Instagram a close up picture of her eye as she cried, the singer told fans this year 'has been heavy and hard' as she has been 'feeling really low'.
Encouraging her 14.2million followers to let themselves feel their emotions, she said: 'This is an honest story post that will get blown up I'm sure. But who cares.
'As truthfully in a world full of "everything is fine, I'm happy, I'm good, life is perfect", there is grief, hurt, pain sadness, heartbreak, reflection and processing this time of year for many of us, alongside the good and great or on its own.'
She added: 'This year has been heavy and hard in many ways for all of us; for me personally one of the hardest but most magical years of my life...
'Personally and professionally. But all the sadness has come up this week; it's the first time l've stopped (working and being in public in months) So I'm crying a lot. Writing shit down feeling really low tbh. The lowest I have felt in a while...
'An accumulation of stuff just making its way to the surface and I'm letting it out...
'Don't hold it in people. We are not superhuman or meant to be happy and positive all the time. It's healthy and normal to cry; and if someone you love is crying don't say "oh don't cry" say "come here"...
'Sending love to anyone feeling this way too right now. No positive end to this. Just I'm with ya. It's sh sometimes.'
Jessie later shared that while she is 'super lucky' her cancer was caught early, there is a chance it could come back.
She went on to share that her mother was the first person she called after receiving her diagnosis, and revealed the heartbreaking thing she told her. She said: 'I remember calling my mum first and I said "Well I can't die because I have Skye"'
Discussing her cancer battle, Jessie said: 'I've been really lucky, super lucky, to find it so early. It wasn't invasive, thank god. I know there's a chance it could come back but until then we're living life.'
The mother-of-one compared her cancer surgery to an episode of Charlie Brooker's dystopian Black Mirror drama.
The pop star opened up about going under the knife admitting she hates being 'put under' with a general anaesthetic because it feels like she's in an episode of the hit Netflix show.
Earlier in the day, Jessie shared a teary end-of-year wrap up with fans on Tuesday as she admitted 2025 was 'one of the hardest' years of her life.