Los Tiki Phantoms come on stage in matching dress. Black trousers, black shirts, yellow waistcoats... and black skull masks. Did half of Slipknot decided to form a Spanish party band?

The crowd have absolutely no clue what's about to happen, neither do I. Gosh this is exciting! Suddenly, Los Tiki Phantoms burst into some jumpy old-school Surf Rock with rippling guitar solos and fast, rumbling drum fills. It's all instrumental and it's very fun. It's as if The Ventures got together for a one-off gig on Día de los Muertos. Yes, that is exactly what I expected to happen. 

In between songs, one of the Tiki Phantoms continuously shouts to the largely English crowd in Spanish. It gets a polite response, mainly because we don't know if he's asking us the time or hailing the dark lord Beelzebub. But hand-clapping is a universal language, and a request for a Conga is understood. The Conga gets stuck at one point and basically becomes a line. Only the British could turn a Conga into a sodding queue! But then everyone started jumping and things were good again.

So what does it take for a Spanish band to fully engage English members of the crowd? A cover of a Norwegian song of course! Their surf guitar version of A-Ha's 'Take On Me' was sung heartily and even the cool people were dancing.