The ratings may be flagging slightly, emotions may not be as high as other years, and the lineup of special guest acts reads like Simon Cowell's 'they owe me a favour' list of friends rather than A-listers, but we're all still excited, right? Right!
Who will be kicked out before Sunday night? What on earth is Louis Walsh going to do for four hours? And what will Simon Cowell make of it all on The Xtra Factor? Stick with Digital Spy all night as we live blog the drama!
The X Factor final kicks off at 8pm on ITV1.
21:57: "It's not the last you've heard of me," shouts Amelia. Oh Amelia, it probably is. It really, probably is.
21:54: Second? I called it right. Marcus Collins is through. It's the final curtain call for Amelia Lily. No comebacks this time. Well, unless one of Little Mix ends up partying with Frankie Cocozza around the back of Wembley Arena's bins tonight.
21:53: Lights down, serious voice from Dermot. It's decision time. Who's through? Little Mix of course. Was there ever any doubt?
21.50: What with all these special guests and my Bublé-induced fit of anger, I'd almost forgotten there was a singing contest going on. Someone's about to leave. My money's on Amelia. Whatever happens. There will be tears.
21:47: Pop fact. Every time Michael Buble sings, music dies. Just a little bit.
21:41: I swear they've even recycled his Wall of Stats. God, Bublé really sucks. I think the acts, the duets, the solos and the production has been superb tonight. The guests? Good grief, they've been bad.
21:34: Right, I'm back. Did I miss anything? The murdering a Nine Inch Nails/Johnny Cash classic, you say? Oh dear. Well, it could be worse. We could have Michael Bublé singing. Oh hang on...
21:30: Another special guest now. A tricky booking, but they finally got their hands on her. It's Leona Lewis. Anyone fancy a brew? I'm going to the kitchen.
21:28: We then get a brief cameo from Amelia Lily's dad. If you haven't witnessed him before, brace yourself. He puts the competitive into the competitive dad cliché. Amelia will be straight to bed without supper if she gets the boot tonight.
21:24: Kelly Rowland describes Amelia Lily as a "born superstar". She's no Sophie Habibis though is she Kelly?
21:22: Kelly Rowland and Amelia Lily do their best to disguise the fact that they clearly aren't bessie mates and bust through a barnstorming 'River Deep, Mountain High'. Amelia really values everthing Kelly says. Kelly knew Amelia had something special from day one. Hmm. What happened in week one again?
21:18: A girl in the audience has had a Little Mix tattoo on her arm. Where does she have her old Rhythmix one hidden, I wonder?
21:15: Amelia had a man painted pink. Marcus had a bloke with toast. Little Mix have a bumbling Lord Mayor from South Shields. This is the face of light entertainment in 2011 people.
21:12: Never thought I'd say this, Tulisa just trumped Gary Barlow. She stomped all over him with that duet. An Alicia Keys mash-up from the Little Mixers and T-dog. Move over Barlow. We did warn you. ShouldHaveDoneTheFlood.com.
21:07: Marcus has lucked out with the judges' duet. But what a missed opportunity from Barlow? Where was 'The Flood'? Gary - what were you thinking? A touching performance from Gazza and Marcus. But was it enough to swing victory the Liverpool lad's way? The emotional dedication to Marcus's mum is underminded by a link-up with Flack and Murs that features some chancer holding a plate of toast that has something allegedly looking like Marcus's face on it.
21:05: Marcus ups the ante in the sob story stakes. It's all about his mam. He used to have to walk to school for God's sake, people! No bus or lift for Marcus. He walked! Are you crying yet? Shame on you.
21:02: After round one, I think Little Mix won the battle of the performances. Marcus may have edged it on the montage thanks to "loving his mam". Amelia needs to pull her socks up.
21:00: When do we get the Bad Lashes, 2 To Go, Diva Fever and Same Difference mash-up? That's what I want to know!
20:58: Time for a brief interlude. Some boys called One Direction and JLS are providing the entertainment. JLS waddle on like penguins. One Direction hurl themselves around like the Haribo-loaded teens they are. Harry's hair looks delightful (someone grab hold of Flack and get her back in her seat).
20:53: Amelia Lily has come dressed as a strawberry Angel Delight for the evening. Pretty in pink. Or like a human blancmange. Depends on your take, I guess. Louis Walsh loves it. Tulisa loves it. Gary loves it. Kelly makes a desperate plea for votes. Amelia's family and friends include a nutjob called Mr Pink. He's painted and dressed in - cleverly - pink. He could be a contender for Celebrity Big Brother by the end of the night.
20:49: Amelia Lily up next. She's just in time to save me from nearly throwing up my Curly Wurly over a Michael Bublé Christmas advert. She's back in Middlesbrough with some screaming school kids, Kelly Rowland and a fetching pink fur coat. I'm going to describe it as Bagpuss-inspired. That children's TV reference probably ages me as twice the average of most X Factor viewers.
20:46: I'm not happy with this. Murs and Flack are doing all the link-ups with friends and family. It will be a poor Christmas in the Jeff Brazier and Michael Underwood households this Christmas. It won't be the same not seeing some budget TV presenter being stranged by a bloke with a pizza shaped like one of the contestants.
20:32: Little Mix go blow-to-blow with Marcus. Marcus had cute grandparents. Little Mix had a cute South Shields kids shouting, 'Come on Perrie'. It's too close to call in the soppy montage stakes. Back to the music, Little Mix are doing a camptastic take on 'You Got The Love'. Leather-clad backing dancers, marching Tulisa-saluting images on a video screen. A monster of a performance.
20:27: Caroline Flack (lock up your boys) and Olly Murs are with Marcus's family and friends. That means they have a few dozen Scousers screeching in their ear holes and someone with a tenous link to the singer for an awkward interview.
20:22: A Pan Am-themed cover of Outkast's classic 'Hey Ya' from Mr Collins. A super-sized routine. It's a pun-writer's dream. "Taking flight", "bumpy ride" etc, etc. Dancing air stewardesses. It had the lot. The kitchen sink and a jumbo jet all thrown in.
20:19: First up tonight... Marcus Collins. A delightful chap. He loves his mum. He's got a cheeky gran and grandad. What more could you want? Oh, and there's a Take That backing track for his montage. Mark them up. Gary Barlow should be buying the drinks at the Wembley bar tonight.
20:16: I doubt anyone would have predicted these three acts would have made the final in week one. I can smugly claim to have called Amelia and Marcus. However, seeing as the first is only here by default, my smugness is only a five on the smug-scale. Somewhere in between Gary Barlow (a three on the scale) and Simon Cowell (a solid ten).
20:11: Duets with the judges. Guests from the Syco/X Factor stable. Can this show get more self-indulgent? Of course it can. Here's the three finalists singing one of Gary Barlow's hits. A rather bland reworking of Take That's 'Greatest Day' is greeted by a raucous Wembley. Kudos to the warm-up man, because that performance was lukewarm.
20:10: I'll tell you what, we could do with some more montages on this show. Lots more. Make them longer as well. I want to hear more about dreams, journeys and some bland sweeping statements from the judges. More of that, please.
20:06: Oh Dermot, you really shouldn't have. No, really. You shouldn't. Our dapper host for the evening enters Wembley Arena Austin Powers-style with his now-signature bum wiggle. The highlight of the routine is a cameo from Goldie Cheung. Let's hope that isn't the last we've seen of the 'ding-a-ding-dong-ding' singer for the weekend. Sami Brookes wasn't fit to polish her boots. Is it too late to bring back Goldie?
19:59: Live from Wembley for the first time ever, it's the X Factor final. It may not have been a vintage series, but the grand final is the Super Bowl of TV shows. I've got enough Curly Wurlys, pop and KP nuts to get me through the long slog. Who's going to win? The smart money is on Little Mix, but you'd be foolish to rule out Marcus and The Barlow. Amelia Lily is a very, very, very dark horse. But what do I know? I said Little Mix would go in week one.
19:56: Evening all! Not much on the box tonight, is there? Something called The X Factor final is kicking off on ITV1. Shall we give it a whirl? Why not!