Louis Tomlinson got emotional during last night's episode of The X Factor after an audition reminded his of his mum Johannah, who sadly died from leukaemia in 2016.
A contestant named J-Sol opened up about losing his mum, saying: "I suddenly lost my mum in 2015.
"Seeing my mum pass in her bed... you just have to appreciate the ones you have because you never know.
He said that his mum had always wanted him to audition for the show.
"Once I've done I'll have nothing left of hers to complete. It kind of feels final."
After impressing the judges with his original song, Louis got on stage and said: "That was moving for me man, I lost my mum as well. I think you did an amazing job."
He also added: "That is the power of music that you can write such a beautiful song that has touched us all on this panel.
"It was absolutely brilliant, it was moving you're a legend for what you've just done. thank you so much for sharing that with us."
GALLERY: the most eccentric X Factor finalists ever
15 most eccentric X Factor finalists ever!
1 of 15Chico, series 2
Finest moment: Chico Time
2 of 15Same Difference, series 4
Finest moment: Wake Me Up Before You Go Go:
3 of 15Rhydian Roberts, series 4
Finest moment: Phantom Of The Opera
4 of 15Jedward, series 6
Finest moment: Ghostbusters
5 of 15Storm Lee, series 7
Finest moment: We Built This City
6 of 15Katie Waissel, series 7
Finest moment: Don't Give Up On Me aka "Sod it"
7 of 15Nicolo Festa, series 7
Finest moment: Just Dance
8 of 15Diva Fever, series 7
Finest moment: Barbra Streisand
9 of 15Wagner, series 7
Finest moment: She Bangs/Love Shack:
10 of 15X_Factor_Series_8_Johnny_Robinson
11 of 15Kitty Brucknell, series 8
Finest moment: Who Wants To Live Forever
12 of 152 Shoes, series 8
Finest moment: Something Kinda Ooooh
13 of 15Rylan Clark, series 9
Finest moment: Spice Girls medley
14 of 15Blonde Electra, series 11
Finest moment: Kids In America
15 of 15Stevi Ritchie, series 11
Finest moment: Livin' La Vida Loca
Johannah died of leuakemia in December 2016. The family issued a statement at the time reading: "It is with immeasurable sadness that Johannah Deakin's family said goodbye to Johannah in the early hours of Wednesday 7th December 2016.
"Earlier this year Johannah was diagnosed with a very aggressive form of leukaemia that required immediate and continuous treatment. We respectfully request that the family are given time and space to grieve in private."