Hayley (20) and Debye (40) are a mother and daughter singing pair from Belfast, Northern Ireland, originally from Canada.
After being mistaken for sisters, the pair revealed to the judges that they're in fact a mother and daughter duo.
"Everywhere we go people either think we're sisters or best friends," they told cameras, "We always go to one another for anything.
"It's literally a bond that no one could ever break."
The pair began singing with one another three years ago and reckon they make a strong duo who "click".
For their audition, the chose to perform Macklemore – Can’t Hold Us
"Well, where do I begin?" asked Sharon Osbourne after the performance before delivering a killer blow that she felt mum Debye should take a back seat.
"You need to be there, but in a different aspect," she explained, "What you're doing now is odd."
But Debye hit back: "We don't think it's odd though. Honestly."
Simon Cowell told the pair: "I've got to be honest, this is not great... but it's quite rare we see someone like you [Hayley]."
Hayley then replied: "I wouldn't do it with anyone else."
Despite the judges' doubts, the pair made it through as a duo to bootcamp.
Elsewhere in tonight's X Factor auditions, 16-year-old Chloe Rose Moyle impressed the judges with her very own song.
Student Chloe from Fleetwood, Lancashire came prepared with her original track for the latest auditions - and she wasn't the only one.
20-year-old student Harry Holmes is from Liverpool, although originally comes from Stoke-On-Trent. He sang original song Girl Who Stayed The Night for the judges.
The X Factor airs Saturday and Sunday nights on ITV.