Sierra Deaton

ABOUT SIERRA DEATON

American singer who rose to fame as one half of the indie pop group known as Alex & Sierra alongside Alex Kinsey . The duo won the final season of The X Factor in 2013.

She was a professional dance competitor for eleven years and earned three international titles for Irish dancing.

She and Alex Kinsey were mentored by Simon Cowell on The X Factor.  In February 2018, Deaton released her debut solo single "Don't Hurt" under her stage name Essy.

She and her older sister Lara were born to a British father and Vietnamese mother. She and Alex began dating in 2009; they dated for more than eight years before announcing their separation in 2017. In 2018, she began dating 5SOS singer Luke Hemmings . She and Hemmings got engaged in June 2021 and married a year later. They welcomed their daughter in August 2025.

She has claimed Demi Lovato to be a large musical influence on her.