She told BBC Radio 1 DJ Chris Moyles "I do think sometimes that a lot of people don't audition for these shows because... they don't feel they look like a popstar, I can't wait, I'm so excited about it".
She also told Moyles "I'm excited to be a coach, inspiration and mentor and I jumped at the opportunity as it's all about 'The Voice'",
The other 3 stars are yet to be announced, but former X Factor judge Cheryl Cole has been named as a rumoured possibility, but we will know who they are over the next few months.
The Controller of BBC One, Danny Cohen said "Jessie J is going to be an amazing coach on The Voice UK. She's a massive young star with a strong personality".
The show which is already a huge hit in America is due to hit British TV in Spring.
