LOS ANGELES (CBSLA) — Singer Solange has canceled her performances at Coachella, which starts this week.

The change was announced Sunday in a tweet by Coachella’s organizers, who said the cancellation was due to “major production delays.”

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Solange, sister of Beyonce Knowles, was originally scheduled to perform on both Saturdays of the festival, which spans two weekends every year in Indio.

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Organizers say Solange “sends her sincerest apologies, and looks forward to performing at Coachella in the future.”

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This year’s festival is headlined by Childish Gambino, Tame Impala and Ariana Grande.