In between riding trains across the U.K., John Legend took a moment to serenade the St. Pancras International train station with a spontaneous set.

The singer made his way to the London station's piano, where he promptly took over from whoever was playing background music and sang three of his songs to passersby. "All of Me" obviously made the cut on the truncated setlist, as did his new single "Surefire."

Legend just seems to be the type of guy who can detect any piano within a two-mile radius and immediately home in on it. The attraction is magnetic.