Pop superstar Beyonce, who is pregnant with twins, has pulled out of her headlining spot at the Coachella music festival in southern California, event organizers announced on Thursday.

The event is among the world’s premier live music festivals and Beyonce’s performance had been eagerly anticipated.

However, “following the advice of her doctors to keep a less rigorous schedule in the coming months, Beyonce has made the decision to forgo performing at the 2017 Coachella Valley Music & Arts Festival,” a statement said, adding that “she will be a headliner at the 2018 festival.”

It was unclear who would take the pop diva’s spot at the two-weekend festival in April in Indio, California.

The superstar announced earlier this month that she and husband Jay Z are expecting twins.

The singer already has a five-year-old daughter, Blue Ivy, with Jay Z.

It is unclear when she is due to give birth.