Do you remember the last busker you saw on the tube? There’s a chance they remember you. If you had any kind of interaction with me, I would. If you smile, wave, cover your ears or sing along, I’ll record it.

One such notable interaction occurred at Leicester Square on a Saturday afternoon during a bog-standard rendition of Bruno Mars’s The Lazy Song. It has a catchy chorus which is preceded by the line, “I said it ’cause I can!”.

Just as I started the “…I can”, I noticed a huge group of school kids approach my busking pitch, staring with huge grins on their faces. As they approached, I watched in slow motion as their mouths opened. They all took deep breaths and in a moment my one-man performance was joined by a chorus of voices in perfect sync and harmony and we became an unexpected choir right there on the Underground.

Dan Hough / Londonist