At first glance, they're nothing alike. One was an anti-art, anti-aesthetic Dadaist prankster, who used visual puns, symbols and everyday objects to call into question the definition of art. The other was a Surrealist and exceptionally fine painter, whose high art attempted to tap into the dream-world of the subliminal mind, visualising its secrets and mysteries.

But scratch the surface, and Salvador Dalí and Marcel Duchamp have more in common than you might think.

This autumn, the Royal Academy will stage Dalí / Duchamp, a major exhibition exploring the relationship between these art-world giants. We'll have around 60 works, photographs, paintings and Duchamp's groundbreaking readymades.

The show will trace links between the two – who happened to be very close friends. Shared themes include eroticism, language, and games. But what really binds the men together is their sense of humour. Wit and laughter are at the very heart of both artists' practice.

This is going to be charming.