By Kirsty Mccormack and Holly Thomas


He humiliated her when he allegedly leaked a video of her performing a sex act while they were together.

And Tulisa Contostavlos let off a little steam in the direction of her ex-boyfriend Justin Edwards while performing at the Barclaycard Wireless festival in London this afternoon.

The 23-year-old dedicated her song Titanium to him, saying: 'this is to my d**khead ex boyfriend, Justin f****** Edwards!!" .. GO T!'

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Got her own back: Tulisa Contostavlos let off a little steam in the direction of her ex boyfriend Justin Edwards while performing at the Barclaycard Wireless festival in London this afternoon

The crowd reportedly appreciated her dig, cheering Tulisa on as she vented a little pent-up anger.

The UK isn't known for having the best weather on record but that wasn't going to stop Tulisa Contostavlos from wearing what she wants.

Tulisa performed baring more flesh than what most people would feel comfortable doing.

As she paraded around on stage in a very low-cut bra top, there was no sign of Tulisa feeling the cold.

Giving it her all: The X Factor judge gave the crowd an eyeful of her cleavage as she belted out her songs

She teamed the busting black garment with a rather short and high waisted star print skirt.

The red, white and black item of clothing showed off the N-Dubz star's toned and tanned legs and also revealed some of her midriff.

Tulisa completed her look with a white and black jacket that featured an over sized collar, and black trainers.

She accessorised with several gold necklaces, large hoop earrings and a moustache ring.


Showing off: The singer bared her toned and tanned legs in a star-print skirt which she wore with a black and white jacket


Busting out: The singer pulls face during an instrumental segment of one of her songs

What's my name? Tulisa performed with her band against a backdrop of her name spelled out in pink writing

Her long dark hair was pulled back into a high ponytail and she also matched her red lipstick to the stars on her skirt.

The X Factor judge gave no indication to how she was feeling about her performance via her Twitter page, but no doubt she enjoyed herself.

Another young female star who took to the stage today was British singer Rita Ora.


Celebrity fans: Frankie Sandford, JLS singer Oritse Williams and Tulisa are in high spirts as they watch Nicki Minaj perform on stage


Not so girly: Rita Ora showed off her midriff but kept her legs covered when she arrived on the stage

Where's the sun? The British singer teamed her camouflage trousers with a rolled up T-shirt and sunglasses

The 21-year-old opted against showing her legs off but she did highlight her tiny waist and very flat stomach in a black rolled up T-shirt.

The West London singer teamed it with a pair of baggy camouflage trousers that were covered in writing including the words 'need a rest.'

The R.I.P singer - who caught the attention of Jay-Z a few years ago - completed her laid-back look with sunglasses a black hat and chunky boots.

Happy to be here: Rita performed her number one single R.I.P to the sold out crowd

And they crowd certainly weren't going to let the on/off weather spoil their day and were seen crammed together in Hyde Park as they watched some of their favourite artists.

Rihanna, Jessie J and J.Cole are set to perform at the London festival tomorrow.


Rousing the crowd: American rapper Wiz Khalifa (left) and Brit singer/rapper Example also performed


Got into the party spirit! Tulisa was composed as she posed up before her performance, but later joked around backstage with JLS's Aston Merrygold


Music lovers: The crowd didn't let the weather get them down as they watched their favourite singers


Squished: Thousands of fans watch the acts perform




source:dailymail