Once Upon a One More Time, the first musical to kick off Broadway’s 2023-24 season. Inspired by the Britney Spears songbook (which includes plenty of hits penned by collaborator Max Martin, who’s also represented down the block with & Juliet), the musical stars Briga Heelan making her Broadway debut as Cinderella, and Justin Guarini (American Idol, season 1) as a handsy Prince Charming.The biggest pop songs of the past several decades converge in a musical reimagining of what might have happened if Juliet survived.