David Tennant backs Red Nose Day 2011

Former Doctor Who actor David Tennant is among the celebrities backing this year's Comic Relief campaign.

Tennant can be seen in the picture above posing in a Red Nose and wearing an exclusive Vivienne Westwood-designed t-shirt.

The actor previously supported the charity back in 2009, when he co-presented the live BBC One show with Davina McCall.

Three different Red Noses are available to buy from Sainsbury's and Oxfam. The t-shirts can be purchased from TK Maxx. Alternatively, you can order them from the Red Nose day shop.

This year's fundraising event will take place on 18th March 2011. For details on how to donate, visit the official Comic Relief website.