Cadbury Dairy Milk encourages everyone to sing for Rebecca Adlington underwater no less. Cadbury and the ad agency Fallon reveal their second track/advert in their quest to Keep Team GB Pumped, the classic Tina Turner song 'Simply the Best'.
Watch as Olympic swimmer Rebecca Adlington is training as usual when suddenly an underwater band appears to help her through.
You can watch the full story of the track, and add your voice on the next track at www.keepourteampumped.com.
So come on Britain - Keep Singing, Keep Team GB Pumped!