The 23-year-old explained this week that she was "excited" about getting more airtime on TV than a 3-minute performance.
The singer is one of four musical coaches on new BBC One reality series The Voice, which launched to almost 10 million viewers at the weekend.
"It's very scary but very exciting," Jessie confessed about the new show. "But you know what? I'm just excited because I get to see a different side of things and people get to see me in a completely different scenario."
The 'Domino' hitmaker went on to explain: "I'm not singing and it's not me doing a three-minute TV performance, so people get to see my personality and really see that I have a passion for what I do.
"That's what I'm most excited about, people getting to see that I am a bit silly, make jokes and get told off.
"But I'm also a hard worker and care about technique and the artist, and I get very emotional."
After Saturday's first show, Jessie currently has three artists on her team of ten in the form of [tag]Jessica Hammond[/tag], [tag]Ben Kelly[/tag] and [tag]Toni Warne[/tag].
Following the auditions, Jessie will have to cut her team in half to just five artists, who will go on to compete in the live shows.
The Voice UK continues this Saturday on BBC One.