Jessie J is set to shave her head live on television in a bid to raise money for Comic Relief.
The Price Tag singer will have her glossy black locks cut down to 0.5mm during the show and has encouraged the British public to follow in her footsteps and complete a "dare" to help boost the millions of pounds being raised.
The 24-year-old tweeted her anticipation ahead fundraising stunt:
Red Nose Day celebrates its 25th anniversary this year with many of the biggest names in showbusiness set to do their bit for Comic Relief.
The Vicar of Dibley will return to screens for the first time in seven years as Dawn French reprises her role as Geraldine Granger.
Music mogul Simon Cowell will be showing off his lighter side when he walks down the aisle alongside ‘bride’ David Walliams, while James Corden is set to revive the role of Smithy from Gavin and Stacey.
Ricky Gervais will return as The Office's David Brent, with the character seeking to reinvent himself as a music producer.
Comic Relief - Funny For Money starts tonight at 7pm tonight on BBC1.