One half of Cheech and Chong is turning to his favorite drug as he undergoes treatment for cancer. Comedian Tommy Chong tells Us Weekly he was recently diagnosed with rectal cancer and "I'm using cannabis like crazy now, more so than ever before." Chong battled prostate cancer in 2012—with help from cannabis, of course—and adds: "Either I get healed or I don't. But either way, I'm going to make sure I get a little edge off." Chong, 77, has been a vocal advocate of medicinal pot, after making a career as a pot-smoking funnyman with Cheech Marin. (More Tommy Chong stories.)