Blink-182 singer Mark Hoppus has is bravely battling cancer.

The musician revealed he had been undergoing chemotherapy treatments for the past three months on Twitter and Instagram.

"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," the 49-year-old wrote online.

"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."

While he did not reveal at what stage his cancer was, he shared a photo of himself seemingly in the midst of treatment.

The photo, posted to his Instagram Stories, captured Mark sitting with an IV in his arm. It was deleted not long after.

"Yes hello. One cancer treatment, please," he wrote in the snap.

Shortly after the news broke, Mark's Blink-182 bandmate Travis Barker sent his love.

Posting a photo of the duo sharing an embrace, the drummer wrote in the snap, "Love you @markhoppus (black heart emoji).|

Barker also told E! News, "Mark is my brother and I love and support him. I will be with him every step of the way on stage and off and can't wait for us to play together again soon."

Concerned fans immediately sent their well-wishes to the successful singer on social media, urging him to "remain strong."

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Instagram

"Thought @markhoppus from my favourite band @blink182 had been quiet on here recently and just seen on his Instagram that he is fighting cancer. This really is the worst news. Stay strong Mark and hope to see you back on stage soon!" tweeted one fan.

"I met you in 2016 and it was the best day of my life, earlier this year when I was going through my own battle w chemotherapy, blink-182 got me through it," another tweeted.

"You have entertained and brought so much happiness and joy to so many including myself over the years. Hang in there Mark," a third chimed in.

Related: Fans Reminisce As Travis Barker Shares A Clip Of Blink-182's 'First Date' Music Video 20 Years Later

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Rolling Stone

"Hey Mark. Really sorry to hear this. If you ever want to chat with a fellow survivor (I'm predicting your future BTW), DM me any time. Good luck," a sweet tweet read.

"Been a fan since before I had my bouts as a kid. It’s been 17 years cancer free since the second bout with Hodgkins. You’re going to beat this! If I can do it I know a badass rockstar like you will too! In my thoughts buddy," another comment read.

Mark formed Blink 182 in 1992 with Tom DeLonge and Scott Raynor, both of whom are no longer in the band.

The group would enjoy smash success over the years with the hits "All The Small Things", "I Miss You", and a Grammy nomination in 2017 for Best Rock Album.

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