Jessie hit out at people liking her to the Geordie performer and other singers, including US popstar Katy Perry.
"I get really frustrated about comparisons," she said. "It's become such a trendy thing to do.
"With me being slap being in the middle of the industry right now, you get it every day.
“I get compared to every female singer out there 'cos we have the same hair or we have one thing that's similar."
Jessie is one of four 'superstar' coaches on The Voice UK, which will star on the BBC this March.