R&B superstar Rihanna canceled her Grammys 2016 performance shortly before the CBS broadcast went live on Monday, February 15, with her rep telling Us Weekly the reason for the last-minute decision was due to her health.

“Based on Rihanna’s examination, after Grammy rehearsal today, Rihanna’s doctor put her on vocal rest for 48-hours because she was at risk of hemorrhaging her vocal cords,” her rep told Us. “The antibiotics she has been on for three days did not kill the infection adequately therefore she cannot perform safely.”

The Anti singer was noticeably missing in action on the red carpet at the Staples Center in L.A., where reporters awaited her arrival. Sources told Us that Rihanna pulled out from the broadcast suddenly.

“Rihanna dropped out a half hour before the show,” one insider said. “It caused a huge crisis.”

According to the insider, the songstress was supposed to have performed toward the beginning of the ceremony, but things were shifted around so that the remainder of the show could go on as planned. Rihanna also missed a rehearsal this past weekend, the source added.

Prior to music’s biggest night, Rihanna was in NYC preparing for her New York Fashion Week debut with Puma. The star-studded event, held this past Friday, February 12, featured the Hadid sisters.

•Photo shows Rihanna.