On , alex & sierra announced to the media that they had broken up more than a year earlier, and would no longer continue to make music together, but would branch out into their own solo careers. They announced their split in september 2017 but said that they had actually ended their romance more than a year prior. · alex & sierra , winners of the x factor season 3, are no longer together romantically or musically. · but after meeting in 2009 and winning the third season of the x factor usa in 2013, alex & sierra are sadly going their separate ways — both personally and professionally. In addition to ending their romantic relationship, the singers also confirmed that they would no longer be moving forward as a band. Alex & sierra , winners of the x factor season 3, are no longer together romantically or musically. Say it isn’t so! In fact, the florida-based duo — comprised of alex kinsey, 25, and sierra deaton, 26,. · alex kinsey & sierra deaton are going their separate ways — both personally and professionally. · no, sadly, alex and sierra have broken up. · from holding hands during performances to going their separate ways, you might be wondering about why alex and sierra broke up , and where they are currently, in their lives.