Britain's Got Talent viewers were left outraged at Amanda Holden 's choice of dress for tonight's semi-finals.

The talent show judge, 49, showcased her killer curves in a daring shiny number that left very little to the imagination - literally.

The mum-of-two looked sensational as she rocked a plunging off the shoulder shiny dark blue gown, that featured a very high slit on her left thigh.

Amanda teamed her glamorous look with silver strappy heels while her gown showed off ample cleavage.

In fact, some viewers were convinced they could actually see Amanda's nipples through her dress.

Though many complimented her fabulous look, others were quick to rush to social media to critique Amanda's choice of dress for a family-friendly TV show.

Amanda opted for a daring shiny frock for tonight's show

One outraged viewer wrote: "Is it me or are Amanda nipples coming out her dress put them away cringing for you."

Another penned: "Is it my eyes or are Amanda Holden nipples nearly falling out of the dress."

A third chimed in: "Sometimes less is more. No class," while a fourth wrote: "You can see her nipples!!!"

However others adored the look, and rushed to Twitter to compliment the blonde beauty on her stunning appearance.

One admirer wrote: "Holy heck Amanda. Wow."

"Wow classic Amanda. You look absolutely amazing xxx," another penned, alongside a lovestruck emoji.

The Saturdays star Mollie King penned: "Wow looking gorgeous! X"

Meanwhile Capital FM host Sian Welby wrote: "Oh come on. Give the rest of us a chance!"

Fans were convinced they saw Amanda's nipples through her dress

Sharing a snap of her final look with her 1.5 million Instagram followers, Amanda wrote: "BGT tonight 8pm @itv! So excited for a show full of incredible acts + we get to see a theatre show (finally!) with a performance from the cast of Hairspray."

Tonight the Amanda - alongside judges Alesha Dixon, Ashley Banjo and David Walliams, return to the judging panel for the final night of semi final acts.

With a total of eight acts taking to the stage to wow the judges, viewers are set to get explosive drama Ant and Dec's Golden Buzzer act Jon Courtney returns to perform.

Fans were left cringing at the ample cleavage Amanda's dress showed

The telly duo sent advanced him through the semi-finals back in April after he impressed them with this comedy song.

The song proved to be a hit among not only Ant & Dec but also viewers at home, as it took aim at Simon Cowell and the judges.

Singing duo Katherine and Joe O'Malley are also set to hit the stage for their third attempt at success.

The pair originally shot to fame with bizarre versions of Disney songs.

The blonde beauty donned a risqué navy gown for tonight's semi-final

Chineke! Junior Orchestra are also set to perform, and viewers are set to see dancing duo Billy and Chantelle and singer Belinda Davids showcase their talents.

And if that's not enough, magicians Jasper Cherry and Kevin Quantum are also back with their very own take on modern magic.

*Britain's Got Talent semi-final airs tonight at 8pm on ITV

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