Tulisa performing onstage at V Festival. Photos: PA
The singer performed at Hylands Park near Chelmsford on Saturday and at Weston Park near Birmingham on Sunday. The latter performance saw her don a one-shoulder leopard print mini and black boots as she showcased her vocal talents alongside fellow band members Dappy and Fazer .
Tulisa didn't neglect her promotional duties though, remembering to tweet a reminder to watch the show to her fans: "So excited for the first episode to air tonight!! Hope you all enjoy the show! ITV1 8pm"
Check out all the other stars we saw at V Festival in our celeb-packed gallery here:
- Rihanna<p> One wardrobe change later and Rihanna was back on-stage to perform with Eminem in her second denim look of the evening.</p>

- Jessie J<p> She might still be chair-bound since breaking her foot at the beginning of the summer, but Jessie J still managed to keep the crowds well and truly entertained - thanks in no small part to her eye-catching fashion.</p>

- Tulisa Contostavlos<p> It might have been all about the <em>X Factor </em>this weekend, but Tulisa was back to her original day job - performing with N Dubz at V, in a micro-mini leopard print dress. The singer enjoyed some down-time in the Virgin Media Louder Lounge post-performance.</p>

- Daisy Lowe<p> Daisy Lowe was one of the stylish music fans to hit V in Chelmsford and enjoy the VIP treatments in the Louder Lounge, in a sweet floral frock and boots.</p>

- Pixie Lott and Oliver Cheshire<p> Pixie Lott was given some time off from performing this year, instead opting to hang out backstage with boyfriend Oliver Cheshire. And check out that matching his-and-hers face paint courtesy of the lovely folk at MAC.</p>

- Alexandra Burke<p> Alexandra Burke joined in the festival fun, keeping warm in the evening in a leather jacket and fedora.</p>

- Ellie Goulding<p> Ellie Goulding was another star to take to the stage during the weekend's line-up, and was snapped hanging out in the Mahiki VIP area in a cute bustier top and shorts.</p>

- Dionne Bromfield<p> Amy Winehouse's goddaughter Dionne Bromfield was super-cute in shorts and a printed vest top as she hit the Chelmsford stage.</p>

- The Saturdays<p> The Saturdays were strutting their stuff in standardly flesh-flashing ensembles during day two of V in Chelmsford.</p>

- Katy B<p> New kid on the block Katy B got well and truly into the festival fashion spirit with her fringing.</p>

- Imelda May<p> Imelda May was wasp-ish in her yellow and black striped dress.</p>

- Eliza Doolittle<p> Eliza Doolittle got theatrical for her performance, teaming her denim shorts and cropped top with a long feather boa.</p>

- Wayne Bridge and Frankie Sandford<p> Post performance and The Saturdays enjoyed some downtime in the Mahiki VIP area, where Frankie was joined by her footballer beau Waybe Bridges.</p>

- Marvin Humes and Rochelle Wiseman<p> Another Saturdays couple, Rochelle Wiseman was joined by her JLS other-half, Marvin Humes.</p>

- Una Healy and Mollie King<p> We're pleased to see that The Saturdays swapped their on-stage ensembles for more low-key festival fashion once backstage.</p>

- Stacey Solomon<p> Stacey Solomon was another who was enjoying all the delights that the Virgin Media Louder Lounge had to offer - such as bronzing and spray tans from St Tropez and festival makeup by MAC.</p>

- Cara Delevigne<p> Model-of-the-moment Cara Delevigne was also snapped enjoying the sunshine, in her baggy tee and shorts.</p>

- Jameela Jamil<p> Jameela might have been on work duty for T4, but she still found time to enjoy a couple of bands - in her strapless mini and wide-brimmed hat.</p>

- Myleene Klass<p> Myleene had a maxi moment in her printed floor-sweeping frock.</p>

- Joe McElderry<p> Joe McElderry was all smiles backstage, chatting to press and posing for pictures with fans in the Louder Lounge.</p>

- Dionne Bromfield, The Wanted and Aston Merrigold<p> Could this be the start of a new super-group? Dionna was snapped hanging out in the VIP Mahiki lounge with a couple of The Wanted boys, and Aston from JLS.</p>

- Rihanna<p> Rihanna stole the show the second she hit the Chelmsford V Festival stage, in a pair of embellished leather hotpants and a midriff-flashing denim shirt.</p>

Did you catch Tulisa onstage or onscreen? Let us know what you thought in the comments and don't forget to check out our X Factor 2011 gallery below:
- Tulisa Contostavlos at the launch press conference<p> The singer used the official <em>X Factor</em> launch press conference as the platform on which to showcase her new blonde-streaked hair. We're not 100% convinced...</p>

- Kelly Rowland at the launch press conference<p> Kelly Rowland also opted for a fitted LBD for the launch conference, but her Versace number had some added injection of colour courtesy of bright green piping.</p>

- Kelly Rowland at the launch press conference<p> The former Destiny's Child teamed her low-back dress with killer wedges.</p>

- Gary Barlow at the launch press conference<p> New head judge Gary Barlow was looking decidedly dapper at the press conference. And quite rightly so.</p>

- Louis Walsh at the launch press conference<p> And then there was good old Louis, just looking like good old Louis.</p>

- The new judges at the launch press conference<p> And here they are, the new fab four. Now is it us, or does Louis look like he's missing his old mates?</p>

- Dermot O'Leery at the launch press conference<p> Ah we'd forgotten just how much we love Dermot! We think we're more excited about getting our weekly O'Leery fix back than we are about anything else <em>X Factor</em> related...</p>

- Caroline Flack at the launch press conference<p> New <em>Xtra Factor</em> presenter Caroline Flack showed off her pins in a micro mini LBD (something of a trend on this red carpet) teamed with leopard print booties.</p>

- Olly Murs at the launch press conference<p> Caroline's soon-to-be ITV2 side-kick, Olly Murs was also in attendance.</p>

- Official photo: The new judges

- Official photo: Tulisa Contostavlos

- Official photo: Gary Barlow

- Official photo: Kelly Rowland

- Official photo: Louis Walsh

- Kelly Rowland in Manchester<p> Kelly Rowland showed off her teeny-tiny waist in a white belted prom dress, teamed with fierce red ankle boots.</p>

- Tulisa Contostavlos in Manchester<p> In what we think is Tulisa's most stylish <em>X Factor</em> moment so far, the judge hit Manchester in a sweet pastel-printed dress and bow belt, teamed with matching bow-festooned heels.</p>

- Tulisa Contostavlos in Birmingham<p> Tulisa seemed to be channeling her inner Cheryl Cole for the Scotland auditions in a patterned minidress, teamed with glossy long locks and peep-toe booties.</p>

- Kelly Rowland in Scotland<p> Kelly Rowland got into the Scottish spirit, attempting the Highland Fling in her ladylike ensemble of printed skirt, pussybow blouse and uber-tall nude heels.</p>

- Tulisa Contostavlos in Birmingham<p> For her big<em> X Factor</em> debut, Tulisa stepped out in a dotty DKNY jumpsuit and chunky scarlet platforms.</p>

- Kelly Rowland in Birmingham<p> For her first official <em>X Factor </em>appearance, Kelly went all out in cropped Twenty8Twelve lace top, with black skirt and Louboutin heels.</p>

- Gary Barlow in Birmingham<p> Replacing Simon Cowell as the esteemed head of the judging panel, new boy Gary Barlow was looking decidedly dapper for the first round of auditions.</p>

- Louis Walsh<p> Finally a familiar face! With the appearance of the ever-present Louis Walsh, it suddenly feels like the <em>X Factor</em> again.</p>

- Dermot O'Leary in Birmingham<p> Also returning to the X Factor for another year, is the delectable Dermot O'Leary. Hurrah!</p>

- Olly Murs and Caroline Flack in Birmingham<p> Taking over from Konnie Huq, presenter Caroline Flack will be fronting ITV2's <em>Xtra Factor</em> - alongside alumni Olly Murs. The pair were colour co-ordinating in blues in Birmingham.</p>

- Tulisa Contostavlos at the launch press conference<p> Tulisa struck a pose in a demure (ish) Little Black Dress by Vivienne Westwood, teamed with towering stiletto heels.</p>

