成人快手

Friday 13 March is of course the big day when thousands of people will be doing something funny to raise funds for the charity.

In Portsmouth's Guildhall Square, the Big Screen will broadcast a special concert by the critically acclaimed 成人快手 Philharmonic Orchestra who will transform themselves into the Comic Relief Whoopee Cushion Orchestra.

You'll be able to watch them performing popular classics accompanied by some rather loud bottom-burping sounds which will include:

The Blue Danube by Johann Strauss
The Liberty Bell (Monty Python theme) by John Philip Sousa
The Hornpipe (Blue Peter theme)
The Radetzky March by Johann Strauss
The 1812 Overture by Pyotr Ilyich Tchaikovsky

If you'd like to take part, just be at the Big Screen from 12:00 on Friday, 13 March, 2009, bring along a whoopee cushion and make sure you tell your friends and family to come along too.

Then if you fancy some exercise, after the Whoopee Cushion Orchestra there's a massive line dancing event, with a professional caller taking the square through its paces at a huge hoe down.

Later on the big screen will turn into an enormous computer game which you can also take part in. The special games which are based on movement recognition uses a camera on top of the screen which picks up and shows people moving in the square.

It then projects objects onto the screen that interact with people's movements. The result is people rushing round the square kicking a virtual reality football or trying to touch and destroy lots of meteorites heading for earth in the centre of the screen!

It'll be great fun!