St Patrick's Junior Choir from Co.Down failed to make it to final stages of Britain’s Got Talent after their performance on Monday's first semi-final but there are still a remarkable four Irish acts in the running for the grand final of the show.

Magic duo DNA and teen singer Kyle Tomlinson made it through, winning the public vote and their places in the big season showdown.

As well as topping St Patrick's Choir in the vote, they beat competition from a street-dancing policeman, a knife-throwing couple and an eccentric magician from Amsterdam.

The choir's spirited performance of Katy Perry’s Roar failed to win them a place in the grand final, which sees remaining acts compete to get one step closer to performing at the Royal Variety Performance.

St.Patrick's got off to an awkward start on Monday evening as a technical problem prompted BGT presenters Ant and Dec to interrupt them just seconds into their song.

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The primary school choir from the village of Drumgreenagh in Co. Down are made of 36 young singers aged eight to 12 and they impressed the BGT panel during their original audition when they performed a rendition of Keane's Somewhere Only We Know and received a standing ovation from the audience.

Tweeting shortly after they were knocked out of the show, St Patrick's Junior Choir said:

Speaking ahead of Monday’s show, principal of St Patrick's School Sorcha Lyness said: "We're just like any other primary school; we teach a range of subjects, children come from different backgrounds but we have something very special that makes us a little bit different."

Also performing on Monday were PC Dan, Niels Harder, Empire Dance Crew, Tyrone & Mina and Miss Treat Vibe.

Still flying the flag for Ireland are 22-year-old Irish dancer David Geaney, comedic dance duo Lords of Strut from Cork, Northern Irish balloon artist Ryan Tracey and singer Leah Barniville.

On tonight's semi-final classical singer Barniville will be back fighting for her place in the final. The 14-year-old advanced after leaving the judges open-mouthed with her singing ability.

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The Meath native stunned the judges with her rendition of Caruso by Lucio Dalla, and earned a standing ovation for her efforts.

The live semi-final shows continue on TV3 from Tuesday at 7.30pm and run until Friday June 2.