Rita Ora puts on an energetic performance in tight red skirt and paint-splattered jacket as she hits the stage after a successful first week on X Factor

All her acts survived the first round of elimination in the X Factor live shows.

And after a successful night, there was no stopping Rita Ora as she took to the stage at London’s Roundhouse alongside Sigma on Sunday evening.

Looking stylish as ever, the new judge stood out in a rather quirky ensemble, consisting of a cropped, denim jacket that was splattered in paint and a red crocodile-skin mini-skirt.

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Born to perform: Rita Ora took to the stage at London’s Roundhouse alongside Sigma shortly after The X Factor on Sunday evening

Born to perform: Rita Ora took to the stage at London’s Roundhouse alongside Sigma shortly after The X Factor on Sunday evening

She added some glamour to her outfit with black knee-high boot boots, complete with red embellishment, and with a pair of metallic cuff earrings.

Her peroxide blonde locks were styled in a relaxed up-do while she continued to sport flawless make-up including matte red lipstick.

Sigma's latest duet with Rita, called Coming Home, is out this Friday and features on their debut album, Life. Other collaborators on their album include Paloma Faith, Labrinth, Ella Eyre and Ella Henderson. 

Moments later, she took to her social media sites to share a snapshot of her first live X Factor show, confessing her excitement working alongside fellow judge and close pal Nick Grimshaw.

See more of the latest news, pictures and video updates from The X Factor live shows 

Bold move: Looking stylish as ever, the new judge stood out in a rather quirky ensemble

Bold move: Looking stylish as ever, the new judge stood out in a rather quirky ensemble

Working it: She dressed her slender curves in a cropped, denim jacket that was splattered in paint and a sexy red crocodile-skin mini-skirt

Working it: She dressed her slender curves in a cropped, denim jacket that was splattered in paint and a sexy red crocodile-skin mini-skirt

Attention to detail: She added some glamour to her outfit with black knee-high boot boots, complete with red embellishment, and with a pair of metallic cuff earrings

Attention to detail: She added some glamour to her outfit with black knee-high boot boots, complete with red embellishment, and with a pair of metallic cuff earrings

Striking display: Her peroxide blonde locks were styled in a relaxed up-do while she continued to sport flawless make-up including matte red lipstick

Striking display: Her peroxide blonde locks were styled in a relaxed up-do while she continued to sport flawless make-up including matte red lipstick

Doing her thing: Rita happily got the crowds to their feet as she sang through her songs

Doing her thing: Rita happily got the crowds to their feet as she sang through her songs

‘When your love is on tv with you,’ she gushed in the captioned. ‘Together always. I love you @nicholasgrimshaw congrats on our first live show. So proud of all the categories. ❤’ [sic]

Meanwhile, it was sad night for Simon Cowell and fellow judge Cheryl Fernandez-Versini as Bupsi Brown and Alien Uncovered became the first acts to leave The X Factor.

It was announced on Sunday’s results show that two acts would be axed from the ITV competition in a shock twist, with the singer with the fewest number of public votes leaving with immediate effect.

Feeling tired? Rita was pictured looking sleepy in her Adidas jacket as she headed to her car earlier this week

Feeling tired? Rita was pictured looking sleepy in her Adidas jacket as she headed to her car earlier this week

Show boss Simon’s exuberant hopeful Bupsi took the news on the chin when she was voted off first, leaving girl band Alien Uncovered and vocal powerhouse Kiera Weathers to battle it out in the Bottom Two sing-off.

Bupsi cheerfully told the crowd: 'It's been a great experience. I've had an amazing time and it's been a great opportunity to show myself and put myself out there. I hope you guys enjoyed my Bupsi magic!'

Alien Uncovered were the first to sing for survival and the six-piece were determined not to fall foul of the Groups' first week curse, putting on a lively performance. 

Good pals: The singer later posed backstage with Cameron Edwards (L) and Joe Lenzie (R) of Sigma

Good pals: The singer later posed backstage with Cameron Edwards (L) and Joe Lenzie (R) of Sigma

Beaming: The stars looked delighted after their stunning performance in London

Beaming: The stars looked delighted after their stunning performance in London

‘When your love is on tv with you': Meanwhile, the pop star took to her social media sites to praise her first live X Factor show alongside fellow judge and close pal Nick Grimshaw  

‘When your love is on tv with you': Meanwhile, the pop star took to her social media sites to praise her first live X Factor show alongside fellow judge and close pal Nick Grimshaw  

Kiera then took the tempo down a notch with a powerful version of R.E.M’s Everybody Hurts, looking as though she fully expected to be sent packing.

Cheryl naturally opted to save her group, saying, ‘My loyalty and love is obviously with Alien Uncovered’, while Rita Ora stayed true to her act Kiera, declaring, ‘It’s only the start for Kiera, and there’s so much you can do.’

‘Those performances really changed my opinion,' explained Nick. 'I loved that Keira, so I’m going to have to send Alien home.’

Simon was left with the deciding vote and took his time delivering his verdict – but embarrassingly got the girl band’s name wrong in the process.

First to go: Simon Cowell's act Bupsi Brown was the first to get the boot after receiving the lowest number of public votes on Sunday night's X Factor results show

First to go: Simon Cowell's act Bupsi Brown was the first to get the boot after receiving the lowest number of public votes on Sunday night's X Factor results show

Emotional: Girl band Alien Uncovered were devastated when they were sent packing after facing off against Kiera Weathers in the Bottom Two sing-off

Emotional: Girl band Alien Uncovered were devastated when they were sent packing after facing off against Kiera Weathers in the Bottom Two sing-off

Bottom Two: Kiera looked defeated as she warbled through R.E.M's Everybody Hurts, but all three judges expect for Cheryl opted to save her 

Bottom Two: Kiera looked defeated as she warbled through R.E.M's Everybody Hurts, but all three judges expect for Cheryl opted to save her 

Holding their heads high: The six piece's disco number failed to impress Nick Grimshaw and Simon Cowell

Holding their heads high: The six piece's disco number failed to impress Nick Grimshaw and Simon Cowell

‘I’m going to have to judge it on the sing off, there is an obvious person who was better tonight. Even though I’m unhappy with this decision, the artist I’m going to send home is Alien Nation', he declared.

The girls enthused, ‘It’s been an amazing experience. Thank you so much Cheryl for getting our swag. We will be back!’

Little Mix were also back on the stage that first made them a household name, making history in 2011 by becoming the first group to ever win the show.

The girls proved they definitely deserved the title by showcasing their amazing vocals as they belted out new single, Love Me Like You. 

The fab four – Perrie Edwards, Jesy Nelson, Leigh-Anne Pinnock and Jade Thirlwall – brought their music video’s prom theme to life, donning pretty evening dresses for their performance.

Final 13: The acts, who include Wild Card Monica Michael, performed One Direction's new single Perfect

Final 13: The acts, who include Wild Card Monica Michael, performed One Direction's new single Perfect

Back where they belong: X Factor 2011 winners Little Mix were back on home turf as they belted out their new single Love Me Like You

Back where they belong: X Factor 2011 winners Little Mix were back on home turf as they belted out their new single Love Me Like You

Bundle of energy: Ellie Goulding bounded around the stage singing new track On My Mind

Bundle of energy: Ellie Goulding bounded around the stage singing new track On My Mind

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