Blink-182 singer and bassist Mark Hoppus shared Wednesday (June 23) that he has cancer and has been undergoing chemotherapy for the last three months.

The 49-year-old musician opened up on social media about the diagnosis and how he’s remaining “hopeful and positive” for a cancer-free future while he still goes through the next few months of treatment.

“For the past three months I’ve been undergoing chemotherapy for cancer. I have cancer,” Hoppus wrote. “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.”

At press time, he did not reveal which kind of cancer has or at what stage he was diagnosed.

According to Variety, fans grew concerned about Hoppus’ health when he posted and quickly deleted a photo of himself in what looked like a hospital room on his Instagram Story earlier Wednesday with the caption, “Yes hello. One cancer treatment, please.” After taking down the concerning photo, he shared the official update on his Instagram Story and Twitter.