Blink-182 musician Mark Hoppus took to social media on Wednesday evening to inform fans and followers that he has been receiving treatment for cancer.
Hoppus has not disclosed what type of cancer he has or at what stage it is at, only disclosing that he is undergoing treatment.
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Fans, fellow musicians and other celebrities flooded his Twitter with well wishes and an outpouring of love for the bassist and singer.
So, what did he say and how did his bandmates respond? This is what we know so far.
What did Mark Hoppus say about his cancer diagnosis?
Hoppus announced his diagnosis on Instagram in a story on his official page.
Instagram stories disappear within 24 hours, but he also shared the news as a screenshot on his Twitter, explaining that he was scared but surrounded by a supportive family and friend circle.
He wrote: “For the past three months I've been undergoing chemotherapy for cancer. I have cancer.
"It sucks and I'm scared, and at the same time I'm blessed with incredible doctors and family and friends to get me through this.
"I still have months of treatment ahead of me but I'm trying to remain hopeful and positive.
"Can't wait to be cancer free and see you all at a concert in the near future. Love to you all."
Hoppus also posted a picture on his Instagram, where he is in a hospital room.
He captioned the shot: "Yes hello. One cancer treatment, please."
How did his bandmates respond?
While over 150,000 people have ‘liked’ his Twitter post in the 12 hours since he shared it, his bandmates - past and present - posted personal tributes.
Former Blink-182 guitarist and vocalist Tom DeLonge, who co-founded the band with Hoppus, wrote a touching message on Twitter.
DeLonge said: “I too, have been aware of @markhoppus’s cancer diagnosis for a while now. And to add to his own words that he used today, I would also like to say that he is strong, and a super-human who is pushing through this difficult obstacle with a wide-open heart. #WeHaveHisBack”
DeLonge left the band in 2012, and was replaced by current guitarist Matt Skiba.
Travis Barker, Kourtney Kardashian’s boyfriend and founding Blink-182's drummer, simply shared a snap of him and Hoppus hugging and Barker planting a kiss on his cheek.
In the Instagram story, he shared the photo with the caption “Love You @MarkHoppus”.
Skiba has yet to comment on Hoppus’ diagnosis publicly.
When was Blink-182 founded?
The punk-rock band was created by trio Hoppus, DeLonge and Barker when they were in their early 20s, in 1992.
The band went on to achieve quadruple-platinum status with album Enema of the State in 1999 - selling more than 15million copies.
Blink-182 has often been attributed as the cornerstone of rock music today - revolutionising the post-punk era.
In 2005, the trio took a hiatus from producing music and touring before reforming in the late noughties and touring throughout 2010, as well as releasing several albums.
In 2012, DeLonge announced he was splitting from the band to work on other non-music related enterprises and business. He performed with the band in 2013, before bidding a final farewell.
He was replaced by Matt Skiba, though he doesn’t feature on the band’s latest single ‘Quarantine’.