Coldplay staged a 'secret' gig at the Round Chapel, Hackney, London, UK.
It took place in the Auditorium on 19th April 2005.
During the performance, lead vocalist Chris Martin clambered up the balcony to give a hug to Oasis man Noel Gallagher, returning with a daring stage dive, as reported by NME and shown here in the video clip.
The gig was subsequently broadcast on MTV a couple of months later.
Hackney Historic Buildings Trust.