You can"t hide behind that mask Tulisa! There"s no mistaking the buxom singer as she arrives at agent"s 50th birthday wearing cardboard…


You can't hide behind that mask Tulisa! There's no mistaking the buxom singer as she arrives at agent's 50th birthday wearing cardboard cut-out of his face

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UPDATED:

23:48 GMT, 17 April 2012

She arrived wearing a mask of the birthday boys face.

But it wasn't hard to tell who the buxom brunette was behind the cardboard cut-out.

Tulisa Contostavlos turned up hiding her heavily made-up face with a picture of celebrity agent Jonathan Shalit.

Tulisa arrived at celebrity agent Jonathan Shalit's 50th birthday hiding behind a mask of his face, before showing off her figure in a tight dress

Tulisa arrived at celebrity agent Jonathan Shalit's 50th birthday hiding behind a mask of his face, before showing off her figure in a tight dress

Tulisa arrived at celebrity agent Jonathan Shalit's 50th birthday hiding behind a mask of his face, before showing off her figure in a tight dress

But if wasn't long to she revealed all – shedding the large picture to reveal plenty of cleavage in a sparkly keyhole silver dress.

The number featured a floaty skirt and she paired it with black heels and a black clutch.

What a good sport! The birthday boy laughs off the joke

What a good sport! The birthday boy laughs off the joke

Dressing up: Tulisa's dress featured a cut-out panel at the front and a floaty chiffon skirt

Dressing up: Tulisa's dress featured a cut-out panel at the front and a floaty chiffon skirt

Dressing up: Tulisa's dress featured a cut-out panel at the front and a floaty chiffon skirt

Old friends: Jonathan was the manager of Tulisa's now-defunct band, N-Dubz

Old friends: Jonathan was the manager of Tulisa's now-defunct band, N-Dubz

She posed next to Jonathan, who was a good sport, laughing at the joke.

The X Factor judge turned up with her assistant Gareth Varey, who accompanies her to most events.

But there was no sign of her new boyfriend, Skins actor Jack O'Connell.

Jonathan
was the manager of Tulisa's now-defunct band, N-Dubz, for several years
and went on to represent her when she went solo.

Her entourage: Tulisa arrived with her assistant Gareth Varey for the bash

Her entourage: Tulisa arrived with her assistant Gareth Varey for the bash

Putting her troubles behind her: The X Factor judge certainly wasn't short of male attention

Putting her troubles behind her: The X Factor judge certainly wasn't short of male attention

The
star joined several celebrities at the party, including Kelly Brook,
Myleene Klass, Jade Ewen, Lorraine Kelly, Konnie Huq, Jackie St Claire
and Kate Garraway.

Tulisa appears to be well and truly trying to put her troubles behind her.

She
had had a rough few weeks after her sex tape with an ex-boyfriend was
revealed and she fell out with cousin and former bandmate Dappy.

Huff and puff: Jonathan and Katrina blowing out the candles on his cake

Huff and puff: Jonathan and wife Katrina blowing out the candles on his cake