And, with a career spanning five decades, Neil Tennant and Chris Lowe have plenty of those to share at the first night of the Heritage Live festivals.

Support act Scissor Sisters set the scene with a typically colourful and energetic set, including hits such as I Don't Feel Like Dancing and Laura.

But as darkness fell, on come the Pet Shop Boys, clad in white lab coats with strange metal masks obscuring their faces.

The Pet Shop Boys at Sandringham (Image: Heritage Live Festivals)

They start with........

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