Cheryl Cole is back to looking her glamorous best after starting filming her debut movie What to Expect when you're Expecting.

The singer has been keeping a low profile since she was sacked from US X Factor.

Cheryl began work on the new movie in Atlanta, Georgia, in which she plays a TV talent show judge and stars alongside Cameron Diaz.

The film – whose cast also includes Dennis Quaid, Chris Rock and Matthew Morrison – chronicles the lives of four couples as they prepare to become parents.

Cameron plays Jules who auditions in an X Factor–style contest in front of the TV talent show judge – Cheryl's character.

The singer is said to have initially impressed Hollywood film bosses during a four–day appearance at the Cannes Film Festival in May.

Her appearance on set comes as she finally wrote her first tweet – two months after opening her official Twitter account.

'It's me CC! WHERE MY SOLDIERS AT.......?!!! I can't believe what my fingers are doing but yes I'm tweeting :-s so here goes...X,' she tweeted.

She then sent a message to her new co-star Cameron, who turns 39 today.

'Happy birthday Cameron, you sexy beeeyyaatchh...X.'

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