Why did Alex and Sierra break up?

Alex and Sierra announced their breakup, both romantically and musically, in 2017, claiming that many things had changed during their eight years together, which fans were unaware of.

Alex Kinsey and Sierra Deaton began their professional singing careers on the third season of The X Factor USA, where they were announced as the winners in 2013. The pair entered the competition as a couple and established a large fan base which followed their journey as a couple and a musical duo. However, after more than eight years together, Alex and Sierra released a joint statement in 2017, confirming that they had broken up. They stated that despite them wanting to continue as a musical duo, it would be best for them to branch out individually.

They stated, “We’ve had an awfully magical time with each other and with you. Unfortunately, things change a lot in eight years, and though we didn’t tell the public, our romantic relationship ended over a year ago. But as everyone does know, we’ve been best friends forever and really tried to keep A&S going. However, we’ve arrived at a point where it feels better to branch out, rather than continue making music together.”

As of 2021, Alex has refrained from sharing any romantic updates on his life on social media, causing for his fans to assume that he is currently single. Sierra, however, has been in an approximately three-year relationship with 5 Seconds of Summer frontman, Luke Hemmings.