<Tr> <Th> Members </Th> <Td> Alex Kinsey Sierra Deaton </Td> </Tr> <P> Alex & Sierra was an American duo consisting of Alex Kinsey (born September 8, 1991) and Sierra Deaton (born February 11, 1991), who won the third and final season of The X Factor US . The duo were also dating . They were mentored by Simon Cowell and became the first and only group to win the American version of the show . Their debut album It's About Us was released on October 7, 2014, on Columbia Records . Their EP As Seen on TV was released on September 30, 2016 . </P> <P> On September 1, 2017, Alex & Sierra announced to the media that they had broken up over a year ago, and would no longer continue to make music together, but would branch out into their own solo careers . </P> <P> Alex & Sierra auditioned in New Orleans, Louisiana, making it to the next round after wowing the judges with a sultry version of Britney Spears' "Toxic". They continued on to the top 40 and received Simon Cowell as their mentor . For the Four Chair Challenge, Alex & Sierra took on the John Travolta / Olivia Newton - John classic "You're The One That I Want" from the 1978 musical film Grease . The judges praised the duo for putting their own twist on the song . Kelly and Paulina felt the performance was "nice" and said they had "sexiness" to them, while Demi Lovato told them they were one of her favorite acts but questioned the future and their relationship . Simon Cowell was annoyed and disagreed, in support of Alex & Sierra as a couple . Despite this controversy, the duo made it through to the live shows . For the first live show, Alex and Sierra earned a spot in the top 12 after performing a stripped - down version of the Robin Thicke hit "Blurred Lines". Kelly Rowland wished it had been a bit sexier and thought it got corny at times, something Simon Cowell disagreed with, praising Alex & Sierra's performance, calling it "original" and "unique". For Motown Night, they took on "I Heard It Through The Grapevine" by Marvin Gaye . Paulina felt it was "natural," while Demi said it felt "organic" as well as very "hot" and "sexy". On the re-vote show, which happened due to a graphics error that nullified the votes, Alex & Sierra sang "Give Me Love" by Ed Sheeran; Cowell afterward said that the performance was "immaculate...ragged and raw ." </P>

What happened to alex and sierra on x factor
find me the text answering this question