Topping the Gaga vs. Kitty - sorry we mean Queen - theme last week was always going to be tough. This week saw the contestants channeling their cinematic heroes as they sang tunes for movie week - from Janet Devlin's Kiss Me to Amelia Lily's Think. With a dashing looking David Walliams and Lara Stone in the audience it was pure Hollywood
The Guest Stars
Rihanna
@ColeenRoo "I wanna be in the x factor studio now!!! Rihanna makes me wanna dance!!!"
@BethanyR_ "Rebecca Ferguson will put Rihanna to shame. Rebecca is full of class an Rihanna will be wearing knickers and a bra"
The Guest Stars
Rebecca Ferguson
@HylandIan "Rebecca Ferguson reminds me of a young Aretha Franklin. (Can someone explain that one to Tulisa for me) #xfactor"
@PleasuresGuilty "I prefer crisps to Rebecca Ferguson. I was hoping this performance would change this, yet alas, no. Soz Rebecca."
The Host
Dermot O'Leary
@heatworld "X Factor time! Come on Dermot, do your fancy dance on! #xfactor"
@StephenMulhern "Is Dermot doing those dance routines at the start of XFactor for Children In need or just for Comic Relief?"
The Judges
Tulisa Contostavlos (Saturday)
@MrDuncanJames "Tulisa looks sooo dam hot tonight on x factor !!! Dang!!!"
@brokenbottleboy "I just gave Aretha Franklin a quick ring. She's never heard of Tulisa. #xfactor"
The Judges
Tulisa Contostavlos (Sunday)
@Walshlife "tulisa got me drunk last night it's all her fault @officialtulis"
@BetterThanToday "And once again, Tulisa wears a rather average Primark-ish number, while Kelly wears an incredible outfit. #xfactor"
The Judges
Kelly Rowland (Saturday)
@HilaryAlexander "Kelly is rocking a kind of Karl Lagerfeld look on X factor"
@littleboots "No need to shout Kelly #XFactor"
The Judges
Kelly Rowland (Sunday)
@YourStylist "The gorgeous Kelly Rowland keeps up the Liverpudlian theme by wearing @philiparmstro & looks amazing!!"
@Frank_Butcher "Has Kelly Rowland come as half a Xmas cracker #Xfactor"
The Judges
Gary Barlow (Saturday)
@markmeets "Anyone else find the X Factor spat between Gary and Tulisa on ITV2 amusing?"
@sophwilkinson "'a semitone too high' Gary Barlow irons his socks #xfactor"
The Judges
Louis Walsh (Saturday)
@VaughanCricket "Blatter... Louis Walsh... Same bag...#pleaseresign"
@glenoglazaSky "But of course Louis Walsh loves it! "That's one of the hardest songs to sing" Correct. Precisely! #xfactor"
The Girls
Janet Devlin
@ANTON_MURPHY "X-Factor....Janet to win is all I know..."
@MarlonMckenzie "I'm so tired! Can barely keep my eyes open :| hope Janet isn't on first lol... She'll definitely put me to sleep!"
The Girls
Amelia-Lily
@hollywills "Amelia... Loved that! X"
@RizzleKicks Am I spinning out or did most of the judges on x factor just say they don't know Think by Aretha Franklin?! #standardmotownbanger
The Girls
Mischa-B
@GizzieErskine "Who is your favourite? I can't decide this year. I love Mischa and Marcus best. I think."
@REGYATES "Considering changing my twitter name to Mischa B's single long wizard nail #WTF #xfactor"
The Boys
Marcus Collins
@susiebubble "Marcus' smile gives me the creeps....I cannot for the life of me explain why...."
@RosieFortescue "Marcus is so cute and full of energy #XFactor"
The Boys
Craig Colton
@sugarscape "Oh God, we're finding Craig hot. Thanks suit. #xfactor"
@4Music "I wish Craig would be less boring."
The Groups
Little Mix
@daisylowe "Ahhhhh my love for little mix is getting overwhelming #xfactor"
@henryholland "AMAZING song! GO LITTLE MIX!!"