Londoners were seeing double after an impromptu live busking performance by not one, but two Olly Alexanders.

The British pop sensation shocked his doppelganger by gate-crashing their gig, inspiring a spontaneous 30-minute performance which surprised commuters at St Pancras Station.

The lookalike tribute named ‘Starstruck’, also known as Keith Marshall, normally tours festivals and events throughout the UK.

After kicking off what he believed to be a solo busking performance, he’d made it halfway through the iconic Years & Years hit, Desire, when the real Olly revealed himself on stage to ‘double’ everyone’s fun.

It comes as research of 2,000 adults, commissioned by Twix to launch its new brand platform ‘Two is more than one' revealed two in five Brits are fascinated by doppelgangers, with 78 per cent saying they’d love to meet their own.

Singer and actor, Olly Alexander, said: “It was nice being able........

© South Wales Argus