One of the world's most popular reality television shows, Britain's Got Talent, came under fire last night when a technical glitch revealed what appeared to be a 'lip synching' on what was supposed to be a live show.

Being the first act on stage for a live show is probably already nerve-wracking enough - it's hard to imagine what was going through the minds of the children in St Patrick's Junior Choir Drumgreenagh when Ant and Dec raced onto the stage.

Stunned viewers were suspicious when a 'technical glitch' caused the show's hosts to race out on stage and stop the young children's performance.

The 36-member choir of 8 to12 year olds had qualified for the semi-final round broadcast when they previously sang 'Somewhere Only We Know' by Keane.

This time, as the choir prepared to sing Katy Perry's Roar, they were immediately silenced as Ant and Dec raced out onto the stage.

Viewer suspicion arose when they noticed the children's lips had stopped moving... yet they could still be heard singing!

Find out what happened on the next page...

Britain's Got Talent Caught In 'Miming' Scandal

The Junior Choir could be heard singing as they stood silently waiting for direction. As hosts Ant and Dec scrambled to explain that a technical glitch had contributed to the lip-sync snafu, the audience wasn't buying their excuses.

Although the children were allowed to restart their performance, the damage was done. The brief pre-recorded snippet of the choir singing Roar lead many viewers to believe that they were being duped.

While many viewers accused the children's choir of cheating, other's believed that it was only a technical glitch that disrupted their backing track. Sadly, the second attempt wasn't enough to win viewers over and the choir did not pass through to the second round.

A Britain's Got Talent spokesperson said: "A technical glitch meant that the wrong song was played at the start of St Patrick's Junior Choir performance as well as some vocals recorded during a rehearsal from them. The choir did not mime and we are very proud of their performance."

Listen for yourself, do you think they were lip-synching?