The Grammys are currently underway, but it doesn't look like Rihanna will be hitting the stage like previously planned. According to TMZ, she showed up to rehearsals earlier today and soon left because she's been reportedly dealing with bronchitis and a doctor recommended that she should go home because she could damage her vocal chords. With her ANTI tour coming up later this month, it seemed that they wanted to be on the safe side of things. The report stated that she was going to perform her ANTI track "Kiss It Better" for the first time, and even fought to go on with the show, but she eventually accepted that she couldn't go on. It's unclear if this illness will force Rihanna to cancel any future tour dates, and we'll continue to update this story as details come out.