Lily Allen looks effortlessly glamorous in a yellow cut-out dress as she makes a stylish departure from the theatre after performing in The Pillowman

Lily Allen looked effortlessly glamorous in a yellow cut-out dress on Monday night after leaving the Duke Of York theatre.

The 38-year-old singer turns her stage door exit into a fashion show every night after her onstage performance at The Pillowman.

But this time she put on a beautiful yellow maxi dress with ruffles.

She looked nothing short of sensational in the cut-out ensemble with a halter neckline.

The color of the dress complimented her blonde locks and she looked elegant in the beautiful outfit.

She upped the ante and added silver accessories including a bag, earrings and dainty high heels.

Lily flashed her back into the stunning ensemble and posed a storm for the cameras outside the theater.

The Smile hitmaker shows off her enviable wardrobe every night after the show, featuring an array of designer outfits.

The Pillowman follows Katurian as she is brutally interrogated by the authorities after a spate of murders bears similarities to her short stories.

Starring Steve Pemberton, who plays Tupolski, and Matthew Tennyson, who plays Michael, Lily takes on the role played by David Tennant 20 years ago.

The black comedy “examines the artist’s role in society and questions the price we pay for freedom of expression,” according to a synopsis on the play’s website.

Speaking of The Pillowman’s discussions of censorship, Lily said the piece raises many questions about free speech and the internet.

She said, “There’s a little bit of violence in it. She’s an artist and a writer and that’s something I relate to. She certainly pushes boundaries. I could get a lot out of it.’

Lily, who is used to performing as a singer, said she likes the fixed character of the lead role in a theater production.

The black comedy, which is “widely regarded as one of the greatest plays of the past 25 years,” will run at London’s Duke of York Theater until early next month.

That comes after the theater was evacuated halfway through the performance on Wednesday.

Onlookers were escorted outside by security and reported that a fire truck was soon on the scene.

Several ticket holders spoke of their confusion after the play was halted, with one saying, “Lily ran off stage – everyone thought it was a scary part of the play, but it turned out to be real.”

However, the incident was quickly dealt with and the audience was allowed back in when the play resumed.