Danny K has broken his silence on his wife's passing. ADVERTISEMENTDANNY K PAYS TRIBUTE TO WIFE LISA KOPPELOn his Instagram account, Danny K broke his silence on his wife Lisa Koppel’s passing. The R&B singer revealed that his 41-year-old spouse had endured a private battle with colorectal cancer over the last three years. Colorectal cancer is cancer that develops in the colon (large intestine) or rectum. As Danny K suggested, screenings, like a colonoscopy, are important for detecting precancerous polyps and removing them before cancer develops.