Rihanna has pulled out of her first public performance since her alleged assault by Chris Brown in February.

The 21-year-old R&B star had been scheduled to perform later this month in the United Arab Emirates. But Yassin Matbouly, of would-have-been concert organizer Vibe Entertainment Management Agency, said in a statement that she’s not yet ready to return to the stage.

“We want to share with you that Rihanna and her management will not be accepting to hold a public concert at this time as it is not appropriate timing for her,” he said.

On an up note, Rihanna made her first major public appearance since Clive Davis’ Pre-Grammy party in February at the Costume Institute Gala’s “The Model as Muse: Embodying Fashion” event at the Metropolitan Museum of Art in New York City on Monday.