The South African band DIE ANTWOORD is 'zef'!
Their songs have titles like “Pitbull Terrier”, “Rich Bitch” and “Happy Go Sucky Fucky”. Now, they performed in Glasgow, and the journalist wrote: 'In the context of much of Western pop culture at the moment, their offensiveness is revolutionary':
Read full review here.
And if you're curious what 'zef' is - read here.