Ahead of the Darkness And Light tour going on sale this coming Friday, the ten-times GRAMMY-winning John Legend arrived in London yesterday morning for a day of press. But true to form, Mr. Legend made time for a performance - at St. Pancras station!

Here's how it all went down: He stepped off the train, dropped his bag, marched over to Elton John's piano just by the Eurostar terminal and without any warning, pulled out an impromptu three-song set, including a live rendition of his new single 'Surefire'.

Watch the action unfold below!

How could this not get you in the mood for a tour!?

John's Darkness And Light tour arrives in Europe this September and calls at following dates:

Friday 8th September - Glasgow SSE Hydro Arena, Scotland

Saturday 9th September - Newcastle Arena, England

Sunday 10th September - Nottingham Motorpoint Arena, England

Tuesday 12th September - London O2 Arena, England

Friday 15th September - Leeds First Direct Arena, England

Saturday 16th September - Manchester Arena, England

Sunday 17th September - Liverpool Echo Arena, England

Tuesday 19th September - Cardiff Motorpoint Arena, Wales

Wednesday 20th September - Birmingham Barclaycard Arena, England

Friday 22nd September - Amsterdam Ziggo Dome, Netherlands

Saturday 23rd September - Luxembourg Rockhal, Luxembourg

Sunday 24th September - Hamburg Mehr! Theater, Germany

Tuesday 26th September - Stockholm Ericsson Globe, Sweden

Wednesday 27th September - Oslo Spektrum, Norway

Thursday 28th September - Copenhagen Royal Arena, Denmark

Saturday 30th September - Berlin Columbiahalle, Germany

Sunday 1st October - Munich Zenith, Germany

Wednesday 4th October - Paris AccorHotels Arena, France

Thursday 5th October - Belgium Forest National, Brussels

Sunday 8th October - Cologne Palladium, Germany

Monday 9th October - Frankfurt Jahrunderthalle, Germany

Tuesday 10th October - Zurich Samsung Hall, Switzerland

Thursday 12th October - Barcelona Palau Saint Jordi, Spain

Saturday 14th October - Lisbon MEO Arena, Portugal