(Cover) - EN Showbiz - Jessie J promises to "snog Rihanna and Ed Sheeran" should she win three BRIT Awards this year.

The 23-year-old songstress has been nominated in the Best Female Artist, Best Breakthrough Act and Best Single categories.

If she should be triumphant with all three, Jessie has pledged to take on a kissing challenge requested by band 3am.

"Do you dare me just to run up and snog him when he doesn't expect it?" she said between giggles on UK talk show Friday Night with Jonathan Ross. "He might not want me to snog him! Is Rihanna gonna be there? Don't dare me to snog her because I will. Alright. So [I'm] snogging Rihanna and Ed Sheeran."

Should this scenario play out the way she dreams, Jessie hopes that she will be conscious enough to plant a kiss on Rihanna and Ed.

"If I win all three, I think I'll faint first," she gushed. "I don't think it's going to happen."

The BRIT Awards are important to Jessie, but so is working with some of her favourite musicians. Jessie has revealed how ecstatic she is to potentially be collaborating with iconic Welsh soul singer Tom Jones.

"I have already spoken to Tom about doing something, maybe a single [at the launch of Radio 1's Hackney Weekend 2012 this summer]," she said. "He is legendary. I would be honoured to sing with him."

Radio 1's Hackney Weekend festival will take place in London in June 23-34.

The BRIT Awards will be held on February 21 at London's O2 Arena. (C) Cover Media