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Olly defends Simon Cowell
Last year's X Factor runner up Olly Murs has defended the X Factor by saying that when he was on the talent contest no auto-tuning was used.
The singer watched his audition over an over and did not detect any voice tweaking .
The X Factor has been criticised regarding claims that auto-tuning has been used on the show to make hopefuls sound better than they actually do.
Cowell and the judges have also been accused of making out of tune contestants sound worse then they would normally sound.