The Vietnamese Giang Brothers continued to leave audience and judges of the 2018 Britain’s Got Talent in awe with their jaw-dropping acrobatic show during the final night of the TV talent show on Sunday.

The daredevil gymnast brothers Giang Quoc Co and Giang Quoc Nghiep made their way to the program’s finale with their signature performance, which sees one carry the other on his head as he walks up stairs.

For the final performance, the brothers, dressed in the Vietnamese soldier uniform, chose to walk through a row of poles, with Co balancing his younger brother atop using only head-to-head contact.

Co managed to carry Nghiep to the very last pole, when he had to make the final jump to a platform to finish the performance.

As the audience gasped, Co, still with his younger brother on his head, successfully made the stunning leap to the thunderous applause of the audience.

The Vietnamese brothers once performed this death-defying jump in their circus live show “Brothers” at the Municipal Theater of Ho Chi Minh City in November 2016, but last night was the first time they have completed it without a safety harness.

Judge David Walliams said the performance was "beyond beyond,” adding that “If you saw it in a movie you’d say it was a special effect. You wouldn’t believe it.”

The show boss Simon Cowell told the pair: "My God, you upped your game."

Despite not winning the show, the Giang Brothers totally won the heart of millions viewers across Britain as people took to Twitter to give supporting comments about their performance.

The two expressed their joy via a post on their official Facebook account after the show’s curtain has fallen.

“Today, Quoc Co and Quoc Nghiep were able to fulfill their shared dream,” the post in Vietnamese reads.

“The word ‘Vietnam’ has helped us defeat fear and conquered ourselves on the stage to overcome such great challenge together with our own energy.”

Co and Nghiep would return home with no prize from the show, but for the brothers, being among its finalists is already a big achievement for their career.

The Giang Brothers happily hug each other as they successfully complete their performance. Photo: Tuoi Tre

“Thank you to our parents, thank you to [our] little families, thank you to all fans and supporters who have been showing their love to us. We’re proud of you guys,” the brothers expressed their gratitude in the Facebook post.

Ten finalists, together with B-Positive Choir, the act picked as the judges' wildcard, showcased their last performances during the live final, trying to win public votes that would decide the winner.

Ahead of the final night, The Giang Brothers were among the show’s top four favorites.

However, when the public vote was closed and all of the finalists were gathered on stage, comedian Lee Ridley, or the ‘Lost Voice Guy’, was announced winner of 2018 Britain’s Got Talent.

The second and third place went to comedy singer and pianist Robert White, and singer Donchez.

The Giang Brothers perform their incredible balancing act during the live final. Photo: Tuoi Tre

The Giang Brothers during the rehearrsal ahead the final night. Photo: Tuoi Tre

The Giang Brothers during the rehearsal ahead the final night. Photo: Tuoi Tre

The Giang Brothers during the rehearsal ahead the final night. Photo: Tuoi Tre

The Lost Voice Guy Lee Ridley, who won the first place of Britain’s Got Talent 2018, is seen in this photo.