The four girls, who were put together at the end of bootcamp, were one of three groups who made it through the weekend's first elimination.
Together with fellow 'bootcamp groups' Nu Vibe and The Risk, Rhythmix will be hoping to avoid falling into the bottom two this weekend, but they've got plenty of support from mentor Tulisa.
"If there was ever a year it could happen," she said on the Xtra Factor at the weekend. "I hope they've done enough and I can do enough for them that it could happen.
"I think this year it's different, I honestly do," she said. "No girl group before brought what they brought to the show. It's a completely different spin on things, and to all the females out there, I want you to support them. If any girl group can go far, they're the ones to do it."
She continued: "They're not against other girls, 'Don't you wish your girlfriend was hot like me'. It's all, 'We're girls, let's unite, let's stand up together, let's be strong'."
Gary Barlow also backed the girls, adding: "They were superb tonight. Whenever I watched The X Factor in the past I've always hated the girl groups, but they were great tonight."
PIC: Copyright Syco/Simon Harris