Madness frontman and radio DJ Suggs took the Glastonbury Festival back to the 70s as he began the ska band's set on the Pyramid Stage.
Suggs took to the stage with long, shaggy brown hair - and after performing the band's hit Embarrassment, he welcomed the audience to Top Of The Pops 1979.
Revealing the joke, he pulled off the wig, saying to the audience: "You didn't think it was real, you slags!"
Madness then performed their first ever single from 1979, The Prince.
The band also gave a nod to the Brexit vote, making clear the country is on the "highway to hell".
Suggs handed the microphone to guitarist Chris Foreman, who said he had recently learnt how easy it was to fool the 51.9% - referencing the percentage of Britons who voted to leave the European Union in Thursday's referendum.
He then led the crowd in a rendition of the AC/DC song Highway To Hell.