Jessie J has spoken out against the "lies" written about her in the media, saying in the last two weeks she has read "the most negative stuff" of her career.
The Voice coach has been branded a 'diva', with papers such as the Scottish Daily Record claiming she refused to meet BBC boss Danny Cohen when he tried to congratulate her in her dressing room after the show on Saturday.
And The Mirror recently claimed insiders have hinted she could be axed from the singing contest, after it boosted her into becoming a household name.
However, speaking at the launch of Music is Great Week at HMV's flagship store in London, the feisty singer made clear to her fans that they shouldn't believe everything they read.
"When I started out people didn't care about how I acted... now I'm still adjusting to it all. In the last few weeks I've definitely felt the most negative stuff I've had in my career, you read stuff that is so untrue," she claimed
Staying positive, the Price Tag singer added: "I don't scoop to low levels, I keep doing my music... This song is how I feel right now."
And with that she burst into an acoustic version of Nobody's Perfect, which boasts the appropriate line: "I'm not a saint, not at all, but what they did wasn't cool."
Such openness and willingness to speak her mind has garnered Jessie so many fans, including the likes of Spice Girl Melanie C, who was also at Monday's event and called Jessie "girl power personified".
However, it's also caused her some flack, with papers quoting BBC sources describing her as a "a law unto herself".
Jessie is not the first outspoken female artist to feel a backlash for not biting her tongue and playing along with the traditional sweet popstar role - the likes of Lily Allen have felt it before and Rihanna is experiencing it still. Yet there's one thing Jessie can't be criticised for - and that is her voice.
When she was first announced as a coach on The Voice there was an outburst of critics questioning her experience to coach talented singers, especially sitting on on a panel next to the likes of veteran Sir Tom Jones, with his half a century of professional experience.
The 23-year-old told The Huffington Post UK at the launch of the show: "I'm still very much in the early days so it's lovely to be able to be on the other side of it while I’m still living what I'm doing."
And throughout the series she has proved herself, with constant valuable feedback to her mentees. However, she only really need step on stage and sing to silence critics. Her voice is so strong and so unique that it's impossible not to take note.
In the packed HMV store, surrounded by her loyal fans (and some confused lunchtime customers) Jessie showed off what she does best, after stating: "Music is the best thing I've ever found, it's everything I live for."
Her songs, which she mainly writes herself, are filled with emotion and her multi-octave voice carries every note of them to the back of the room. Her tics and rolling-r's make-up her unique sound and she's clearly not shy about what she can do.
Teasing her audience, she joked: "Shall I do the high-note?" before belting out a perfectly controlled floor-raiser not usually heard from your average chart star.
Her performance, full of high-kicks, audience interaction, silly voices and impersonations, is an example of what makes her one of the hottest young artists around right now.
A fan offered up their phone for Jessie to sing into and instead of snubbing them she grabbed it with enthusiasm and made up a song on the spot, about the fan's phone. Yes, Jessie can even make up songs about Blackberrys - although I'm not sure it will be on her second album, which she's currently working on.
Melanie C, obviously a fan, called Jessie "one of the greatest females artists Britain has ever had". It's a big statement, but anyone who gets to see her perform live may well soon be saying the same.
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Jessie, Melanie and other stars you'll recognise talk about Music is Great Week below...