The Great British Sewing Bee

A place in the quarter-final is at stake, and this week the sewers must face three technically-taxing challenges from the world of lingerie.

First up, in the Pattern Challenge, it is time for bed as the sewers are asked to make a pyjama blouse. Piping is an intricate undertaking, and it should cover the cuffs and front.

For the Transformation Challenge, the sewers take shapewear and lace and, using their unique structure and form, create new outfits.

Finally, it's ‘boom or bustier' as the sewers tackle boning and make bustier dresses in the Made-to-Measure. Their ability to fit a model is put to the test - there is nowhere to hide if a bustier dress is not fitted well.

The quarter-final sees the five remaining sewers make garments inspired by divas past and present. From Elton to Mariah, this week's theme is most definitely fabulous.

For the Pattern Challenge, judges Patrick Grant and Esme Young take Tina Turner's iconic fringed dress as inspiration and challenge the sewers to create their own versions with multiple layers of fringing.

The Transformation Challenge envisages the diva on their day off, still fabulous but this time slipping into something more comfortable in animal print.

Finally, in the Made to Measure, the sewers get to choose a stage outfit for their favourite diva. From Beyoncé to Lady Gaga, the sewers have all bases covered when it comes to stage presence.

Kiell Smith-Bynoe welcomes the four semi-finalists into the sewing room as the judges set three challenges inspired by design icons.

First up, master pattern cutter Cristobal Balenciaga is the inspiration for the Pattern Challenge, as the sewers recreate a version of one of his dresses.

In the Transformation Challenge, taking the lead from the iconic Jean Paul Gaultier, the sewers are given a pile of neck ties and tasked with using them to create a brand new garment.

Finally, in the Made to Measure, Coco Chanel is in the spotlight as the sewers get the chance to scour her long career to find a style to make an outfit inspired by her work.

Four remaining sewers, three challenges, but one will miss out on a place in the final.

It's the grand finale as the three finalists compete for the title of Britain's best amateur sewer.

Patrick Grant and Esme Young kick things off by challenging the sewers to make opera gloves. These gloves require delicate fabrics and precision sewing - a true test at this stage of the competition.

Next, it's the sewers' last chance to show off their instinct for design in the Transformation Challenge. They attempt to turn party paraphernalia, such as napkins, paper hats and even bunting, into a complete party outfit.

Finally, for the first time in ten years of Sewing Bee, the sewers create a full outfit by draping on their models within the time allowed for the challenge. They have had a chance to plan, but it is in the sewing room where all the hard work will be done. This is their final chance to show the judges why they deserve to win.

Three finalists, three challenges, but only one sewer will be crowned the tenth winner of the competition.