Although the 'Nobody's Perfect' hitmaker has not finalised her clothes for the glamorous event, she has promised fans they can expect something special from her.
She told the Daily Mirror newspaper: "I'll be my usual Essex self, wearing something epic. I was going to do it last year but thought, 'Nobody knows me.' "
However, Jessie is wary of criticism over her outfit after her see through ensemble to the launch of the BRITs was widely panned earlier this year.
She explained to The Sun newspaper: "I wore a see-through catsuit at The Brits launch last month and everyone was like 'She wore the same thing a year before'.
"Maybe I should go casual in Nike Jordans, jeans, woolly hat, T-shirt. No make-up."
She added: "Tinie Tempah is fun to hang out with and I can't wait to see Adele perform and give her a hug and tell her how proud I am of her. Ed Sheeran is great to watch too. I think he'll definitely collect an award."