The Big Sing is back and set to break its 2005 Guinness World Record for the biggest ever simultaneous sing along and to raise funds for Marie Curie Cancer Care, CLIC Sargent and Youth Music.

Over 400,000 children will fill their school halls on Thursday 27th November at 2:45pm, to join Des'ree in singing her hit song 'You gotta be' as she performs live from the O2 arena in London .

But there's room for plenty more - with only four weeks to go before registration closes, the Big Sing organisers, Young Voices are calling for schools across the country to sign up and play their part in this record breaking challenge.

Get your local school involved by visiting the Big Sing website www.bigsing.com and register to be a record breaker today.