Glastonbury bosses have said they are "appalled" by comments made by rap duo Bob Vylan during their performance at the festival Saturday.

The Glastonbury Festival is making headlines for controversy rather than music. Little-known rap-punk duo Bob Vylan have drawn politicians’ ire and a police probe after leading a chant calling for “death” to the Israeli military.

Organizers of the Glastonbury Festival said Sunday they are "appalled" by the onstage statements of the punk duo Bob Vylan, whose singer led the crowd in a series of chants including "Death, death to the IDF" and "Free Palestine" the day before.