- 22,847 viewsDuration: 1:32Zaghrouta, a high-pitched, trilling sound used to express joy, has echoed across generations - from Morocco to Botswana. The vocal tradition, often led by women at weddings and celebrations, recently went viral after Sabrina Carpenter appeared surprised by the sound during her performance at Coachella. The BBC’s Basma El Atti explains the moment and the cultural history behind Zaghrouta. Presenter, producer: Basma El Atti Subscribe: http://bit.ly/subscribetoafrica Website: https://www.bbc.com/africa Facebook: https://www.facebook.com/bbcnewsafrica/ Twitter: https://www.twitter.com/bbcafrica/ Instagram: https://www.instagram.com/bbcafrica/