A host of celebrities including Katherine Jenkins, Davina McCall and Bear Grylls are fronting the Show Your Support Campaign, which launches today, to encourage the nation to back Team GB throughout London 2012.

The public can get involved by purchasing a supporter's scarf, available from Next, the official Olympic clothing and homeware supplier. The design features the Team GB Lion printed across 900 symbols to represent the athletes of Team GB and Paralympics GB. All profits go to the British Olympic Association and British Paralympic Association.