Mark Hoppus has received ‘the best possible news’ after scans reveal his chemotherapy treatment is working. The 49-year-old Blink-182 bass player recently revealed he has been battling stage 4 cancer. pic.twitter.com/S9oZvPHZEw — ϻ𝔞Ⓡ𝔨 𝐇𝑜Ƥ𝐩ย𝓼 (@markhoppus) June 23, 2021 In a post on Twitter, Hoppus confirmed the devastating diagnosis. He wrote, "For the past...