Emily's pulled 'Toxic' back out of the rubbish bin to perform it on this Saturday's live show as her pick for the Louis Loves theme, dedicated to songs that judge Louis Walsh adores!
The 18-year-old initially picked 'Toxic' as her Express Yourself song for week one, but swapped it at the last minute in favour of The Chainsmokers' 'Closer'.
At the time, Emily told us about the switch: "They felt 'Toxic', which was the first choice, just wasn't really me because I'm young and current and fresh and that is kind of an old song so it didn't make sense for me to do that. I really love that song so I was a bit gutted. I'm keeping my fingers crossed I may sing it another week."
Each of the last five contestants will perform one song for Louis Loves and another track they've chosen themselves. Three of them - Honey G, Saara Aalto and 5 After Midnight - have gone for mash ups.
The full song list is:
Louis Loves: 'Toxic' by Britney Spears
Own Pick: 'Human' by Rag 'N' Bone Man
Louis Loves: 'Can't Touch This' / 'Super Freak' by MC Hammer / Rick James
Own Pick: 'Push It' / 'Black Beatles' by Salt-N-Pepa / Rae Sremmurd
Louis Loves: 'Secret Love Song Pt. II' by Little Mix
Own Pick: 'Alive' by Sia
Louis Loves: 'The Winner Takes It All' by ABBA
Own Pick: 'Diamonds Are Forever / 'Diamonds Are A Girl's Best Friend' by Shirley Bassey / Marilyn Monroe
5 After Midnight
Louis Loves: 'Uptown Funk' by Mark Ronson and Bruno Mars
Own Pick: 'Sorry' / 'One Dance' by Justin Bieber / Drake
The X Factor continues Saturday at 8pm on ITV.