Boyband Kingsland Road made an emotional exit from Sunday night's show after losing out in the sing-off to The X Factor favourite Tamera Foster.
Judge Gary Barlow slammed the result, complaining that the British voting public "got it wrong".
The song that led the London-based five piece to their second sing-off of the series was Jackson 5 classic Blame it on the Boogie. They had hoped to be saved by their performance of James Morrison's 'I Won't Let You Go'.
However, 16-year-old Tamera Foster's heartfelt rendition of Whitney Houston's I Have Nothing kept her in the competition.
It was the first time Tamera had faced the sing-off after her choice of Wishing on a Star by Rose Royce on Saturday night, and she was told by Sharon Osbourne that she had a voice "like velvet".
Only Barlow, who is mentoring the groups this year, opted to save Kingsland Road, aka Connor, Josh, Matt, Thompson and Jay.
The group were left visibly upset by the decision, as their mentor comforted them following the announcement they were being booted out of the show.
The group later took to Twitter to thank their fans and Barlow - and vowed that being voted off did not mean "the end" for the group.
It was also a bad night for Sam Callahan, who was named by three of the judges as their least favourite act of Saturday's disco-themed show, with Barlow going so far as to say he "hated" the teenager's performance of his Take That hit Relight My Fire.
Despite a grim synopsis from the judges, the 19-year-old was the first to be told that he was through to next weekend's big band night.