You had to feel sorry for these guys.

They put on a big free music event in the centre of London and then the weather pisses down relentlessly all day long.

A few umbrella-clutching hardy souls huddled together to watch some wet performers put up a spirited performance, but the square was never going to rock today.

All around the perimeter could be seen the long faces of the bored owners of punter-untroubled stalls, who clearly wished they were elsewhere.

We did our best to lend some support, but after ten minutes in the rain, we headed off to the Photographers' Gallery for a nice cuppa and a slice of the excellent, home baked banana cake.