Watch every single Alex and Sierra 'X Factor' performance - Videos

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alex-and-sierra-x-factor-semifinals-gravity.jpgAdmit it: You're still hung up on "The X Factor" winners Alex and Sierra and how truly great they became over the course of the FOX reality competition's third season. The show might not be the best, but the Florida duo is the best winner to come out of a singing competition show in years.

While they're headed to Los Angeles after the new year to record their debut album -- they won a $1 million Sony recording contract as their prize -- we can't wait that long to listen to them! So until then, Zap2it has compiled videos of their each and every "X Factor" performance to tide you over until you can buy a full disc. (You can buy most of their singles on iTunes now.)

Audition round: "Toxic," Britney Spears



Four Chair Challenge: "You're the One That I Want," John Travolta and Olivia Newton John



Live Show No. 1: "Blurred Lines," Robin Thicke



Motown Night: "Heard it Through the Grapevine," Marvin Gaye



Live Show No. 2 Redux: "Give Me Love," Ed Sheeran



'80s Night: "Addicted to Love," Robert Palmer



British Invasion: "Best Song Ever," One Direction



Big Band: "I Knew You Were Trouble," Taylor Swift



Divas: "Say My Name," Destiny's Child



Unplugged: "Say Something," Great Big World and Christina Aguilera



Semifinals No. 1: "Little Talks," Of Monsters and Men



Semifinals No. 2: "Gravity," Sara Bareilles



Semifinals Duet: "Falling Slowly," Glen Hansard and Markéta Irglová



Semifinals No. 3: "Let Her Go," Passenger



Finals No. 1: "Give Me Love," Ed Sheeran



Finals No. 2: "Bleeding Love" with Leona Lewis



Finals No. 3: "Say Something"



Christmas Song: "All I Want for Christmas is You," Mariah Carey



Winning Song: "Say Something"


Photo/Video credit: FOX