Published Friday, 15 March 2013
Jessie J will shave her head on live TV. (© Pacemaker)
The Price Tag singer is parting ways with her glossy black bob to raise money for Comic Relief.
The Red Nose Day broadcast celebrates its 25th anniversary this year with presenters for the show including Rob Brydon, John Bishop, Davina McCall, Nick Grimshaw, Jonathan Ross and Russell Brand.
Miranda Hart, Dawn French, James Corden, David Walliams and Hollywood star Will Ferrell will appear in sketches or in person during the show.
X Factor chief Simon Cowell will be displaying his lighter side by taking part in a spoof in which he is seen to walk down the aisle in a wedding sketch, alongside David Walliams dressed as a blushing bride.