Lily Cooper, neé Allen and Richard Madeley are among celebrities to express concern over the treatment of an X factor contestant, who appeared to many viewers to be vulnerable.
TV favourite Richard described Ceri Rees' audition, which was aired on Sunday night as cruel.
He said: "Loads agree that last two acts on X Factor last night should never have been featured, certainly at such cruel length. Bad end to show."
Meanwhile, Lily tweeted: "They shouldn't have aired that audition, she's clearly ill."
Ceri struggled to sing in tune throughout her audition and yet was still allowed to sing two songs, giving her a total of seven minutes viewing time.
Many felt this was too long and made for uncomfortable viewing.
ITV presenter Lorraine Kelly tweeted: "Uncomfy to watch ceri on X Factor - she's a poor wee soul."
A spokeswoman show said: "The X Factor is open to everybody to apply and we regularly welcome back contestants who want to audition again.
"Her audition was the same length as the other key stories we have featured in the series.
"Ceri has assured the team today that she is happy she auditioned for the show."
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