There will be medal winners taking to the stage, huge screens showing all the action, and a host of bands, too, including The Beat, Geno Washington and The Ram Jam band, Space Ships Are Cool, London Calling and Reasons To Be Cheerful.
Until September 9. 11am-10pm, free
Trafalgar Square, WC2 5DS
Tube | Piccadilly Circus
Image: TNT / Laila Pacheco