Kelly Clarkson, Rita Ora and Britain's Got Talent stars Only Boys Aloud have completed the lineup for this year's X Factor final.

The trio of acts join One Direction, Rihanna, Emeli Sande and Kylie Minogue.

Clarkson will be performing on the Saturday with Minogue and Ora.

Sande, Rihanna and One Direction will play on the Sunday.

None of the special guests are duetting with the finalists this year.

Instead, James Arthur and Jahmene Douglas will perform with their mentor Nicole Scherzinger, while Christopher Maloney will partner with his mentor Gary Barlow.

This year's X Factor final is taking place at Manchester's Central Arena in front of an audience of 10,000 fans

I wonder what Gary and Christopher are going to sing.

Relight my nana ? Up all nan ? Nan for good ?

Only two acts that haven't already performed this year...

I thought Leona would have been certain to help her promote her new song which is out soon i'm suprised.

Great line-up this year. Big improvement on 2011, when only Coldplay was the highlight.

Maybe Simon's finally realised there's no point flogging a dead horse?

Maybe Chris will sing "Theres No One Quite Like Me Nan" (variation on Theres No One Quite Like Grandma)

Good promotion for the third placed act on BGT this year

They were fantastic on Britain's Got Talent, just the thing we need

I'm quite excited for this final now.

RITA ORA? Bloody Kia Ora again? Why? She's not even popular. And people can whine on about her three number ones, but one was a featured artist and the other two didn't have much longevity or make a sizable cultural impact. She's not even affiliated with SYCO... why does it feel as if the whole industry has joined forces to convince the world she's a superstar? It's SO desperate and WEIRD. WHY!?!?!?

Exactly the same as what happened with Jessie J.

At least Jessie J has a bit of originality to her, The fact they've got Rita muscling in on what Rihanna is doing AGAIN is a joke.

Excited for Kelly Clarkson, she's a superstar and deserves these slots, much like P!nk last week. Glad to see a slight shift (Ora ignored) towards talent over style from the show.

Leona is bound to appear, unless Sande gets the "singing over the clips montage" slot from her.

Bloody Sande would show up at the final or anything to sing her crap, she's getting worse than McCartney for being wheeled out, singing the same song, over and over.

If Emeli Sande sings that bloody Read All About It, I will be fuming that song is probably the most overplayed song of the year, I don't think I could take yet another version of it!

It's supposed to be a surprise but Nicole is reported to perform as well.

Like her or hate her Jessie J had an undeniably huge first era selling shedloads of albums and singles including doing reasonably well in the US.

Have to wait and see how she'll do on her next album but confident it will do better than Rita's first.

Well she will be performing twice if she's duetting with her acts

Eeeek can't wait for Kelly, hope she performs a medley to promote the GH's which is No.9 atm!! She will wipe the floor with Tulisa and show 'em what a great singer actually is!

Hopefully Kelly performs Catch My Breath which has so far had a dismal peak of #51; although a medley would sell the greatest hits better (which has peaked at #24 and is currently #30 in the midweeks).

Agree with that

She splits opinion but she has some credibility.

Rita Ora...NO. Such a Rihanna rip off.

Yeah don't know what has happened to Kelly. She hasn't done as well as her Since Youve been gone days.

No, on top of performing with her acts, she's reported to perform her new single.

How the **** does Emilie Sande keep getting all these bookings?! Olympics, X Factor.. why?! She's shite.

eh she never had a number one until the all i ever wanted album which was 6 years after since u been gone!! then had her second with Stonger!! she's getting better with age...she just never gets decent promotion from her label

My god! I thought JEREMY Clarkson was appearing from that header!

The Olympics has had a snowball effect. The 'read all about it' song then reached a wider (i.e. older) audience and became even more irritating. God knows why she was given 3 separate slots in the ceremonies compared to the other talent in this country.

Leona Lewis would have given a much better rendition of 'Abide with me', seemed so weak at the time.

She's gonna, and she's gonna look that same constantly smug way when she does it.

She's worse than McCartney and Hey Jude, the slightest whiff of an event or potential "moment" and they dust one of that pair off and shove them out to bleat to the audience.

Can't stand Emeli Sande.

Kylie and Only Boys Aloud will make a nice change. Kelly is the basically the queen of reality TV so it's a good thing she gets the chance to sing.

Emeli Sande is everywhere and she's not even that great.

One Direction? Haven't the been on it twice this year.

Rita Ora is terrible beyond words and Rihanna has been performed on the X Factor so many times they will soon be getting her to tip in on staff birthdays.