The 'Who's Laughing Now' singer, who was announced as the first coach on the upcoming singing competition in October, claimed that the musicians would sit beside herself and will.i.am on the panel in a new interview with The Daily Star.
"The Voice is going to be amazing. I'm s**tting myself but in a good way. I can't wait to meet Tom Jones. He's Tom Jones, after all," Jessie J said.
"I've never met Will Young before, either, so that will be cool. I'm a big fan of them all, which is a good job because it would be horrible if I didn't like any of them."
The 23-year-old continued: "I've met will.i.am briefly and can't wait to get started. I'm really happy that I'm the only girl on the panel."
The Voice will debut on BBC One in early 2012.
Jessie J previously promised that The Voice won't turn contestants into laughing stocks the way that shows such as The X Factor do for entertainment value.
She recently revealed that she almost quit music after becoming frustrated with the direction that her career was heading in.