Saturday night's episode of X Factor was an extravagant one as the show was celebrating it's 10th anniversary. This year's acts were challenged to sing hits from past X Factor contestants.
Tamera Foster caused the biggest furore on the show when she forgot her words for the third time, despite vowing to make sure it didn't happen again.
Fifth to perform, she chose an emotional version of James Arthur's winners single, Impossible which was originally penned by singer Shontelle.
Tamera did however look gorgeous. She had cut her hair into a short blonde bob and she wore a metallic and black short-sleeved top with a black pencil skirt which had a train at the back.
Tamera responded: 'I think I got inside my head too much, I put everything I have into that song.
Tamera Foster was introduced to Olly Murs earlier in the week, rather than James Arthur who sang Impossible in last year's show as he had a busy schedule.
Former X Factor contestant, Olly Murs opened the show with his new song Hand On Heart. He performed on a heart shaped stage and looked like he had indulged in a bit of a spray tan.
He wore a taupe jacket over a black shirt and trousers on he got a standing ovation from the four judges.
Presenter Dermot O'Leary asked Olly what his memories of the show were and he said: 'I remember getting a few moans off Simon a couple of times.' He also admitted he's backing Rough Copy to win.
The first contestant to perform was Nicholas McDonald who was celebrating his 17th birthday.
He performed Miley Cyrus's hit, The Climb which had also been released by Joe McElderry as his Christmas single after he won the show in 2009.
The pair met up to talk tactics earlier in the week and Joe told him: 'You remind me so much of how I was on the show,' while advising him to add in adlibs and high notes to make the hit his own.
Nicholas wore a navy suit jacket, blue jeans and Nike trainers over an ombre shirt and at the end of his song, Dermot presented him with an elaborate birthday cake complete with edible judges.
Second to perform was Hannah Barrett who sang Alexandra Burke's winner's song from 2008, Hallelujah.
Alexandra was brought to tears by Hannah's rendition and on the night, she won rave reviews and looked gorgeous in a gold Grecian-inspired maxi dress.
The show than played a montage of the best X Factor judge moments taken from the past 10 years which included Simon snapping at Chico, Louis crying and Gary Barlow storming off set.
Luke Friend who was devastated to be in the sing-off last week against Sam Callahan, was third to perform, taking on One Direction's huge hit What Makes You Beautiful.
After his last performance, his spirits were raised when Adele Tweeted him to tell him that she loved his performance and that she wanted him to win.
Luke got some advice from Shayne Ward on Friday who said it was about time one of Louis's boys won again.
Luke wore a black and white floral shirt for his performance, along with a blue velvet jacket, a matching pockerchief as well as some rather feminine black patterned skinny trousers and loafers.
The star kept his acoustic rendition simple, performing with just a guitar and piano accompaniment and he certainly made the song his own as Louis would say, adding a soulful twist.
Rough Copy were fourth to perform next with a cover of En Vogue song Don't Let Go. Previous contestants Little Mix covered the track when they were on the show in 2011.
The boys threw some sultry shapes when they performed on the night and they harmonised their vocals beautifully. They threw in a key change for good measure, too.
They channelled a 90s clothing vibe wearing baggy cargo trousers and retro Caterpillar boots and Nicole was first to congratulate the boys on their act.
Sam Bailey closed the show and she wowed with both her performance and her outfit as she performed Leona Lewis's global hit single, Bleeding Love.
On Friday, Sam met Leona Lewis and she told her she was worried about being just an impersonator but Leona told her to add bits in change it up.
She said: ‘Her main worry about the song was making it her own. It’s such a well-known song and she didn’t want to divulge from the melody.
Sam looked amazing in a red showstopper of a gown which showed off her new slim figure. The optical illusion dress had black panels down the side which made her waist look even smaller.
Gary said: 'I think Leona Lewis is the best vocalist this competition has found and only you could sing it. You've really modernised your voice.
Nicole added: 'All I ever care about is if you mean it, I love that you had that hiccup at the end because you felt it.
Some of the previous X Factor winners were excluded from the show's anniversary special.
Steve Brookstein, Shayne Ward, Leon Jackson and Matt Cardle's songs weren't covered by the performers, although Shayne did appear on the show when he met Luke Friend and he sat in the audience for Saturday night's show.
But an insider added: 'It is a slap in the face for the winners who won’t be covered.
It isn't the first time that X Factor bosses have written Steve, Shayne, Leon and Matt out of the show's history.
Earlier this year, they were not featured in a special X Factor advert, mashing up the biggest hits spawned by the show.
Two of X Factor's biggest bands, One Direction and JLS will perform on Sunday night's live results show which will be shown at 8pm on ITV.
While One Direction will perform their new single Story of My Life, JLS will take to the stage with the current contestants for what promises to be an amazing collaboration.
US singing sensation, Mary J Blige will also give an exclusive performance.