Bob Vylan celebrated their album, 'Humble as the Sun,' re-entering the U.K. charts after controversy surrounding their performance at Glastonbury.

The prime minister is involved; so is the U.S. deputy secretary of State. The BBC is changing policies. But Bob Vylan remains steadfast.

London punk-grime duo Bob Vylan are the subjects of a criminal investigation following their set at Glastonbury. This is the story behind the biggest talking point of this year's festival