Jessie J dares fans for charity competition

Jessie J is encouraging fans to take part in dares for charity as she prepares to shave her head to raise money for good causes.

The Price Tag hitmaker has agreed to cut off her long locks and go bald to raise money for the U.K.'s Comic Relief organisation, and she is hoping her devotees will join her by doing something similarly brave.

Jessie J has been given her own page on the charity's website dedicated to her hair-raising stunt, and she urges fans to do dares for sponsorship and upload videos to YouTube.com.

In a post on her Twitter.com page, the singer posts a link to the website and writes, "Yo Yo Yo! Go get sponsored to do a dare and send it to me! Woop Woop! Go Go Go!... Jessie J dares."

A message posted on the page reads, "If you've been inspired by our fearless and soon-to-be-hairless Jessie, why not do a dare of your own to raise money for Red Nose Day. But don't worry. It doesn't have to involve your hair."

Jessie J will shave her hair off during Comic Relief's Red Nose Day live telethon on 15 March (13).