She's often been compared to Katy Perry singer because of their wacky fashion sense and rapid hair colour changes.
And now, Jessie J had won very public approval from the I Kissed A Girl singer via Twitter.
It comes as as her latest music video for Laserlight is released with music producer David Guetta.
The 24-year-old performed at The Roxy in West Hollywood last night with guests including British boyband The Wanted, who are also trying to crack the U.S. market.
Katy re-tweeted a comment by her music producer Dr Luke, which said: 'jessiejofficial performing tonight in LA !!! she sings so good live !!!!'
She added that the singer 'schools everyone'.
Jessie then tweeted about the T-shirt she was wearing which had a pictures of Mario and Luigi from the Mario Bros video game.
She said she's bought it in extra large and cut it herself.
Katy obviously admired her fashion sense and re-tweeted the comment.
Meanwhile, Jessie's new music video has caused uproar among her fans who said it was not her usual style.
It features the singer in an array of skimpy costumes, getting ready in front of a mirror, as well as sitting in a movie theatre and dancing in a club.
One fan said on Twitter: 'Not going to lie @jessiejofficial I dont really like the laserlight vid, I can speak for a lot of heartbeats we don't really think its "you".'
She responded: 'And what's 'me?.. Different is good, change is normal, growth is important.'
Another fan - or heartbeat as Jessie calls them - obviously agreed with the comment and wrote: '#heartbeats are just giving your opinion . I think it's important for @jessiejofficial . clear that this is no attack , it's love.'
Jessie said: 'I was asking genuinely. Why is everything made into a HUGE thing. I respect everyones opinion but I will always do what I love. Doesn't mean everyone is going to like it. Life isn't like that. But I am me. Always me. :)'
And now, Jessie J had won very public approval from the I Kissed A Girl singer via Twitter.
It comes as as her latest music video for Laserlight is released with music producer David Guetta.
Singing her praises: Katy Perry tweeted that Jessie J 'sings so good live' ahead of her concert at The Roxy in West Hollywood last night
The 24-year-old performed at The Roxy in West Hollywood last night with guests including British boyband The Wanted, who are also trying to crack the U.S. market.
Katy re-tweeted a comment by her music producer Dr Luke, which said: 'jessiejofficial performing tonight in LA !!! she sings so good live !!!!'
Stylish: Jessie looked cute in a blue leather jacket, Super Mario Bros. T-shirt, denim short shorts and red boots
Support: The pair are often compared to one another
She added that the singer 'schools everyone'.
Jessie then tweeted about the T-shirt she was wearing which had a pictures of Mario and Luigi from the Mario Bros video game.
She said she's bought it in extra large and cut it herself.
Katy obviously admired her fashion sense and re-tweeted the comment.
Is that lingerie? Katie wears an array of skimpy outfits in her new music video for Laserlight, with David Guetta
Risque: The star even flashed her derriere in the video as she danced and pouted in front of a mirror
Meanwhile, Jessie's new music video has caused uproar among her fans who said it was not her usual style.
It features the singer in an array of skimpy costumes, getting ready in front of a mirror, as well as sitting in a movie theatre and dancing in a club.
One fan said on Twitter: 'Not going to lie @jessiejofficial I dont really like the laserlight vid, I can speak for a lot of heartbeats we don't really think its "you".'
Controversial: Jessie hit back at fans on Twitter who said the video wasn't her usual style
Toned: Jessie flashes her midriff as she dances around flashing lights
She responded: 'And what's 'me?.. Different is good, change is normal, growth is important.'
Another fan - or heartbeat as Jessie calls them - obviously agreed with the comment and wrote: '#heartbeats are just giving your opinion . I think it's important for @jessiejofficial . clear that this is no attack , it's love.'
Jessie said: 'I was asking genuinely. Why is everything made into a HUGE thing. I respect everyones opinion but I will always do what I love. Doesn't mean everyone is going to like it. Life isn't like that. But I am me. Always me. :)'
Don't hurt yourself! The singer relaxed in what looks like a movie theatre while wearing an extremely spiky jacket
