Elton John surprises commuters with a piano performance in London train station

An impromptu piano performance by Sir Elton John has stunned London commuters at the busy St Pancras railway station.

The British music superstar played a medley of hits in the middle of the station to a crowd of fans.

The Rocket Man posted a photo on his Instagram saying, "Surprise!! I popped into St Pancras International to christen the Yamaha piano which I donated to the station. Now everyone can have a play."

He then paraphrased his lyrics in another picture, commenting "my gift is my song and this piano's for you."

Following the performance he thanked the crowd and left the station.

The 68-year-old singer is currently promoting his new album Wonderful Crazy Night which was released today.