© Photo: ITVCheryl Fernandez-Versini is mentoring the groups in this year's X Factor.
© Photo: ITVGuest judge Jess Glynne will help Cheryl pick her final three acts.
© Photo: ITV4th Impact (formerly 4th Power)
- The band are Mylene (23), Irene (25), Almira (27) and Celina (19)
- The band are four sisters who have grown up singing and dancing together
- In their first audition, they performed Jessie J's Bang Bang
© Photo: ITVAlien Uncovered (formerly Alien)
- The band are Madison (19), Natalie (18), Temple (24), Frank (17), Yaz (23) and Shae (23)
- They have been together for 18 months
- In their first audition, they performed performed The Black Eyed Peas' Pump It
© Photo: ITVBEKLN Mile (formerly BEKLN)
- The band are Baison (31), Emmanuel (27), Kadeem (22), Lawrence (22) and Nathanael (29)
- They have been together for six months
- In their first audition, they performed James Bay's Hold Back The River
© Photo: ITVMelody Stone (formerly Silver Tone)
- The band are Keshia (32), Nicole (22), Rachel-Yvonne (31), Wynter (24) and Santhy (26)
- They have been together for six months
- In their first audition, they performed Simon and Garfunkel's Bridge Over Troubled Water
© Photo: ITVNew Kings Order (formerly The First Kings)
- The band are Cardan (22), Aaron (25), Calum (23), Josh (21) and Hemz (25)
- The band have been together since April 2015
- In their first audition, the band performed Bruno Mars' Uptown Funk
© Photo: ITVReggie n Bollie (formerly Menn on Point)
- The band are Reggie (31) and Bollie (29)
- The band have been together for three and a half years
- In their first audition, the band performed their own song, Turn It Up
© Photo: ITVRita Ora will be mentoring the girls in this year's X Factor.
© Photo: ITVMeghan Trainor will be help Rita Ora choose her final six contestants.
© Photo: ITVChloe Paige
- The 21-year-old hails from from Brighton
- Works part time on her dad's market stall selling cosmetics
- In her first audition, Chloe performed Katy B's Crying For A Reason
© Photo: ITVHavva Rebke
- The 21-year-old comes from Enfield
- Works in retail, in her cousin's clothes shop
- In her first audition, Havva performed Jessie J's Masterpiece
© Photo: ITVKeira Weathers
- The 18-year-old is from St Helens
- Works as a barmaid
- In her first audition, Keira performed Ella Eyre's We Don't Have To Take Our Clothes Off
© Photo: ITVLauren Murray
- 26 years old, from North London
- Until recently, she worked as a dental receptionist
- In her first audition, Lauren performed Jocelyn Brown's Somebody Else's Guy
© Photo: ITVLouisa Johnson
- 17 years old, from Essex
- Currently a student
- In her first audition, Louisa performed Michael Jackson's Who's Loving You
© Photo: ITVMonica Michael
- 25 years old, from North London
- Singer/song writer and youth worker
- In her first audition, Monica performed Christina Aguilera's Impossible
© Photo: ITVSimon Cowell will be mentoring the overs category in this year's X Factor.
© Photo: ITVSimon Cowell's guest judge this year will be One Direction's Louis Tomlinson.
© Photo: ITVAnton Stephans
- 45 years old, from London
- Works as a singer
- In his first audition, he performed Jennifer Hudson's I Am Changing
© Photo: ITVBupsi Brown
- 37 years old, from Leeds
- singer
- In her first audition, she performed Tina Turner's Rock Me Baby
© Photo: ITVEbru Ellis
- 27 years old, from London
- Student and singer
- In her first audition, she performed David Guetta's What I Did For Love
© Photo: ITVJennifer Phillips
- 49 years old, from London
- session singer
- In her first audition, she performed Mary Mary's Shackles
© Photo: ITVKerrie-Anne Phillips
- 28 years old, from London
- works as a singer/teacher
- In her first audition, she performed Rihanna's We Found Love
© Photo: ITVMax Stone
- 27 years old, from London
- musician/song-writer
- In his first audition, he performed Bob Marley's No Woman No Cry
© Photo: ITVNick Grimshaw will be mentoring the boys in this year's X Factor
© Photo: ITVMark Ronson will be helping Nick choose his final three contestants.
© Photo: ITVBen Clark
- 25 years old, from Coventry
- works as a night time receptionist
- In his first audition, he performed 3 Doors Down's Here Without You
© Photo: ITVChe Chesterman
- 19 years old, from Langdon
- Used to stack shelves but has been pursing life as a singer for past few months
- In his first audition, he performed Jessie J's Who You Are
© Photo: ITVJosh Daniel
-21 years old, from Billingham
- Works as a car mechanic
- In his first audition, he performed Labrinth's Jealous
© Photo: ITVMason Noise
-22 years old, from Birmingham
- worked as a part-time waiter
- In his first audition, he performed Justin Timberlake's Señorita
© Photo: ITVSeann Miley Moore
- 24 years old
- Originally from Sydney, Australia but he moved to the UK to audition for The X Factor
- In his first audition, he performed Queen's The Show Must Go On
© Photo: ITVSimon Lynch
-22 years old, from Isle Of Man
- Worked in marketing
- In his first audition, he performed Beyonce's If I Were A Boy
