The boyband trio also known as YMS, who were mentored by judge Ronan Keating during their time on the reality show, were eliminated from the competition after going head-to-head with solo singer Declan Sykes.
YMS were praised by all four judges after performing Jagged Edge and Run DMC single 'Let's Get Married', as was Sykes for his unique version of Oasis hit 'Wonderwall'.
When the judges were asked to vote for which act they would like to send home, Keating admitted that he thinks Sykes is "brilliant" but said that he would obviously support his act and vote to send Sykes home.
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Guy Sebastian, who is Sykes's mentor, said that the elimination was not about "who deserves it more" but "a matter of taste" and "genre". He then chose to send YMS home, despite describing it as a "loss".
Mel B said that she had "to think on an international level" about "who would be more favourable for the public" and decided to send Sykes home, but then Natalie Bassingthwaite chose to vote out YMS because she wants to see Sykes develop more.
As a result, the elimination went to the public vote and YMS were asked to leave. They said: "The X Factor experience has been a wonderful journey. It's been such a blessng to be here and live our dreams. Every week's been an amazing opportunity."
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Jason Derulo and last year's X Factor winner Altiyan Childs both performed during the live show.
Watch the elimination of Young Men's Society from The X Factor below: