The singer will release 'Night Light' on October 22 as the latest track from her debut album Devotion.
Discussing the song at the launch of MTV Brand New 2013, she told Digital Spy: "It was a toss-up between 'Wildest Moments' and 'Night Light' of which one we'd release first. I think it will work well for the autumn.
"I feel like it's a sassy ballad and I thought I could throw a few diva moves in it. We just shot the video and I think it'll look fantastic."
The star, who previously featured on tracks by Sampha and SBTRKT, insisted that she wants to "keep on doing dance and electronic music", adding: "But at the moment I'm just too busy.
"I kind of know who I want to work with, but it's just a case of figuring out where and when. It's nice to be able to do that and it feels legitimate and not contrived in any way."
On the MTV project, which provides a platform for new talent, Ware suggested: "It's important to enjoy the moment people pay attention to you. You have to believe in yourself to make the right decisions and hope people will follow you."
The 27-year-old recently reworked the track with Hot Chip's Joe Goddard.
Listen to Jessie Ware's 'Night Light' below: