Relley is one of Sharon Osbourne's final seven Overs on this year's show but it's not her first time on the series.
She made it as far as judges' houses in 2013, then in the Girls category, mentored by Nicole Scherzinger.
Relley returned to the show this year and had an emotional reunion with Nicole at the room auditions.
Now Relley is in the same spot as 2013, but will she follow in the footsteps of Emily Middlemas and Brooks Way? They are both in the live shows after also making it as far as judges' houses in the past.
In the Overs category with new mentor Sharon, she's the first to sing.
Relley tells cameras: "I was at Nicole's judges houses we went to Antigua. Last time I got to judges houses Unfortunately didn't get through to live shows.
"I've grown up. Before I was on the show I was in the Girls, now I'm in the Overs. If I don't do it now, it'll probably never happen. If I fall again at the last hurdle I'll be devastated."
Relley sings Kelly Clarkson's Up To The Mountain for Sharon and her guest judge Robbie Williams.
And her emotional voice impresses Robbie, who says: "I was genuinely moved, I was genuinely transfixed. Whatever it is, she's got it."
Sharon reveals: "I was surprised three years ago when she didn't get through. She's never done a gig or anything like that."
Can Relley make it through to the live shows tonight?
The X Factor 2016 airs this evening at 7:30PM on ITV.