Fans of Britain's Got Talent have accused producers of rigging the result.
For four nights in a row, the semi-finalists who performed last were voted through to tomorrow's final.
On Monday, Michael Jackson dance act Signature was last to perform and ended up with most votes, while on Tuesday, 13-year-old Andrew Johnston sang as the last act and also topped the public poll.
On Wednesday, George Sampson, 14, was the final act on with his dance routine to Singin' In The Rain. And last night singer Faryl Smith, 12, was the last performer and won the vote.
The coincidence was not missed by some viewers, who suspect the producers put their favourites on last so they would be freshest in the public's mind.
Although the phone number to vote for each act comes up after they have performed, the lines are only open after the final act has finished. Fans then have just 10 minutes to make up their minds and call.
One blogger said: "It just seems to be a bit of a set-up that Signature, Andrew Johnston and George Sampson all went on last... I think they were all the favourites for their own specific night."
Bosses at the ITV show, which is judged by Piers Morgan, Simon Cowell and Amanda Holden, insisted the pattern was "nothing more than a coincidence".
A spokeswoman said: "The judges have no say over the running order of the show. The voting is all fair and balanced.
"It is also worth pointing out that acts which have appeared early on in the show have been coming in second and third in the public voting."
12-year-old opera singer Faryl Smith was described as 'one in a million' as she made it to the final of Britain's Got Talent tonight.
The youngster from Kettering, Northamptonshire, wowed the judges with her performance of the Westlife song Angel.
Simon Cowell told the singer: "When you enter a competition like this, you pray to find someone like you. You are literally one in a million.
"Anyone hearing you for the first time tonight should remember this occasion because you have the most incredible future ahead of you. You're super talented."
Faryl told hosts Ant and Dec it was 'absolutely amazing' to win the semi-final.
The schoolgirl will be joined in Saturday's final by Scottish plumber Andrew Muir, who sang Paolo Nutini's Last Request.
Andrew, of Fauldhouse, West Lothian, received strong praise from the judges.
Piers Morgan told the 24-year-old: 'You've come on stage tonight and I felt a bit of a Paul Potts moment," referring to last year's winner.
Simon Cowell commended Muir's singing but criticised his choice of outfit.
He said: 'The shoes, the watch, everything is just horrible, so you got that completely wrong, but most importantly, I think you've got a very good voice.'
Less successful in the semi-final were husband and wife quick-change act Sam and Vicki Lane, whose performance was cut short after they received three buzzers from the judges.
Morgan told the Hull pair, who use the stage name Vizage, that they had committed 'complete career suicide'.
And Cowell told the pair that their blend of song, dance and magic did not work.
He said: 'It's like ordering an ice cream and getting onion topping.'
Eight more acts will perform on the next semi-final of the ITV1 show tomorrow night, competing for places in Saturday's final.
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