Jessie J Joined By Brandy And Dizzee Rascal During iTunes Festival 2013 Show

Lawson were also on the line-up last night at the Roundhouse in Camden.

Jessie J was joined on stage by Dizzee Rascal and Brandy during her iTunes Festival 2013 performance.

The 'Domino' singer debuted new material from her latest album 'Alive' and was in celebratory mode as she hit the stage in Camden's Roundhouse.

Opening with 'Price Tag' the set also included 'Do It Like A Dude' and 'Excuse My Rude'.

"When I turned 25, I understood my responsibility as an artist," she told the audience during one of the more emotional moments of the evening.

Brandy and Jessie performed their collaboration 'Conquer The World' with Dizzee jumping on stage for his verse of 'Wild' later in the show.

Jessie J Eyes Ed Sheeran Collaboration On New Album 'Alive' Repackage

The 'Domino' star admits she is really keen on recording a track with the 'Lego House' man.

Jessie J has confessed that she wants to record a collaboration with Ed Sheeran for a repackage of her new album 'Alive'.

The 'Who You Are' singer told Digital Spy that she keeps iTunes playlists of tracks that never make the final cut of her records.

"In my iTunes I've got playlists and one's like, 'Never play, never use, never let anyone hear'. Then there's the 'Random songs' and then there's 'Repack'," she said. "Hopefully I want to do a repackage, because there's a song I really want to do with Ed Sheeran.

She added: "I keep messaging him, but he's so busy. I'm like, 'C'mon Ed - let's take it back to the days when it was me and you on Old Street doing an urban gig'".

Jessie released new album 'Alive' this week, and last night she performed at the iTunes Festival 2013.

Jessie J Teases New Song Title Reveal And Promises A Tour "Experience"

The 'Wild' singer says her 'Nice To Meet You' tour will be a true experience for the audiences.

Jessie J is expected to announce the title of her new single next week (26th September) with a special Facebook Live event in London.

The 'It's My Party' singer is set to perform and answer questions at an hour-long event at the Facebook offices in London, as well as revealing which will be the next single from her new album 'Alive'.

Jessie J has also opened up about what fans can expect from her upcoming 'Nice To Meet You' UK tour, promising a real "experience" for the audience.

"I've written the treatment for the tour," Jessie told the Daily Star this week. "All of the ideas are mine. It's very much an experience. You guys will get to feel a lot of the songs, you'll get to know me," she added. I try my hardest no matter how far away the audience are, however big the crowd, to really look at people when I sing."

Check out a picture of Jessie J performing live in Rio de Janeiro over the weekend below

This week also saw the announcement that Jessie will join Robin Thicke on tour across North America next year, while she has expressed disappointment after her album 'Alive' began to leak online recently.Jessie J officially releases new album 'Alice' on 23rd September.

Jessie J Tweets Disappointment After New Album 'Alive' Leaks Online Early

The 'Price Tag' singer says she thinks the "mystery in music is slowly disappearing"

Jessie J has been taking to Twitter to reveal her disappointment after her new album 'Alive' leaked online this week.

The record will not be released until 23rd September, but copies have surfaced on the Internet over the past few days.

"One day. Just one day. Something I work hard on will NOT be leaked... Smh ," she wrote to her followers.

The singer then added that she believed social networking was partly to blame.

"The mystery in music is slowing disappearing. The big reveals don't happen anymore, everything is so immediate! Social networking just makes everything so accessible. Such a shame ," she continued.

Jessie has been previewing tracks from the record on Instagram this month and also revealed that she is to head out on tour with Robin Thicke next year.

Farewell Rio! Jessie J says goodbye to her Brazilian fans as she jets back to London

The 'It's My Party' Singer Says GoodBye To Brazil After A Storming performance at Rock in Rio. 

The It's My Party singer was on her way back to London
following an appearance at the annual Rio event

And with the show wrapped for another year Jessie J 

made a beeline for the airport on Monday – but not 

before saying good bye to her fans. 

The 25-year-old singer was leaving her hotel in the company of a burly minder when she paused to acknowledge the throng of autograph hunters gathered outside the entrance. 

Wearing a black vest top, breezy monochrome skirt and sandals, Jessie indulged them with photos and obligatory autographs before heading on her way.

The stylish star opted to team her black and white outfit with simple accessories in the form of large hoop earrings and dark sunglasses, while the very eighties looking hat on her head was set at a raffish angle. 

At one point the It’s My Party singer appeared to immortalise the occasion by taking a snap on her mobile phone while the bodyguard looked on. 

Jessie J leaves her hotel on Monday 

after performing at this year's Rock in Rio event

Jessie had previously delighted her fans with a headline performance at this year’s Rock in Rio event on Sunday. 

The singer used the opportunity to showcase a string of tracks from forthcoming sophomore album Alive, while classics such as Dot it Like a Dude and Price Tag were also included on the set-list. 

Following in the footsteps of Beyonce, who performed on Friday, and Alicia Keys on Sunday, Jessie was kitted out in another futuristic ensemble, a patchwork playsuit, held together by black leather binding. 

Jessie appears to take a picture of her fans

while a bodyguard looks on

The star opted for black trainers, but despite the lack of heels she certainly didn’t need the extra height by showing off her lengthy, toned pins at the show.

She kept her blonde pixie cut in a sleek style, while keeping her make-up golden with some gold eyeshadow and cheek shimmer.  

Justin Timberlake and British rockers Muse were also amongst the acts to feature at this year’s event.

Fresh faced: Jessie J performs on Daybreak following her flight from Brazil

Jessie J Announces US Tour Support Slot With Robin Thicke

The 'Domino' star will head out on tour across North America next year with the 'Blurred Lines' man.

Jessie J has revealed that she will be heading out on tour with Robin Thicke next year.

The 'Domino' star will support the 'Blurred Lines' man across North America and was thrilled to tell her fans the news on Twitter 2 days ago..

"I'm going on TOUR WITH robinthicke baby #usahereIcome #callingallhearts #icannotwait ," she said.

"Thank you @robinthicke for asking me to support you on your US tour! I am so ready! Lets do this! #USheartbeatsitsfinallytimeformetocomemeetyouall "

Robin will also be joined by DJ Cassidy for the jaunt, with both stars appearing on his new album.

Robin and Jessie recorded the song 'Calling All Hearts' for the record, and Jessie recently said there was no plans to do a 'Blurred Lines' style video. 

Jessie J Teases "Gospel And More 80s" Sounding New Album 'Alive'

The 'Price Tag' star talks about the "happier" tracks on her latest record and how some are perfect for weddings.

Jessie J has been speaking about her forthcoming new album 'Alive' and told fans to expect a more "gospel" and "80s" sound on the record.
The 'Who's Laughing Now' star told Hello magazine that many of the tracks would also be perfectly be suited for a wedding.

"This album's a lot more gospel, a lot more 80s, more soul," she said. "There's a lot of good wedding songs, like happy love songs.'

The 'It's My Party' star also told the publication that she doesn't necessarily look back upon life mistakes as a bad thing.
She added: ''I've always found singing songs that I've 'lived' makes more sense to me, which is why I and make my life as exciting as I can. Mistakes make great songs, so there's always an excuse to make one.''

Jessie will release 'Alive' on 23rd September and has also teamed up with Robin Thicke for a track on DJ Cassidy's new album.
The former Voice coach admitted the track has a real "Earth, Wind and Fire" vibe" but said an accompanying video would be nothing like Robin's 'Blurred Lines' promo.

Jessie J Says Miley Cyrus Is Like Olives: "You Love Her Or Hate Her"

The 'Price Tag' star also reveals that she'd love to work with the US singer again in the future.

Jessie J has opened up on the public's perception of Miley Cyrus and branded the US star like "olives".

The 'Domino' singer admitted, "you either love her or hate her" as she discussed the most talked about female star right now.

Miley caused controversy with an explicit performance at the MTV VMAs 2013 last month and has been in the headlines ever since.

"You can't do anything in this industry without testing it, and that means to do it for real in front of people," Jessie told the Daily Star.

Miley recently gave her first interview since the event and said it was her intention to "make history" alongside Robin Thicke during the performance. 

The British singer also admitted she'd be up for working together again, after penning her hit 'Party In The USA'.

"I'd love to work with her again," confessed Jessie.

Meanwhile, Jessie was among the stars at the in GQ Men Of The Year London this year and wowed with her red carpet glamour.

Jessie J Gives New Details On "Earth, Wind And Fire" Sounding Robin Thicke Duet

The 'Domino' singer also reveals she'll be filming the music video with the 'Blurred Lines' star in the next few weeks.

Jessie J having a "proper Earth, Wind And Fire throwback" vibe.

The 'Who You Are' star dished the details to the Daily Star this week, with the publication reporting the song will feature on DJ Cassidy's new album.

"It's an amazing song and we're shooting the video in three weeks," she said. "It's a proper Earth, Wind And Fire throwback track."

The song is called 'Calling All Hearts' and the star recently admitted that there would be no "stripping off" like the 'Blurred Lines' video when she teams up with Robin.

"I'll be getting paid a lot of money if they want me to dance around like the girls in the 'Blurred Lines' video," she joked.

Meanwhile, both stars will be heading to the iTunes Festival 2013 this month.

Jessie releases new album 'Alive' on 23rd September.