Her maternal grandparents are Argentine and Welsh, with more distant Italian and Turkish roots, while her paternal ancestors had fled to England from Eastern Europe.
[3] In 2014 Kingston starred as Vanessa in the original London production of In the Heights, with David Bedella as Kevin, Josie Benson as Camilla, Damian Buhagiar as Sonny, Victoria Hamilton-Barritt as Daniela, Sam Mackay as Usnavi, Christina Modestou as Nina, Sarah Naudi as Carla, Eve Polycarpou as Abuela and Wayne Robinson as Benny.
[4] The show was directed by Luke Sheppard and choreographed by Drew McOnie, transferred to the King's Cross Theatre, after a successful run and closed in 2016.
[13] Kingston then joined a West End star studded cast in Schwartz at 75, two performance concert in celebration of the famous composer, held in September 2023 at the Lyric Theatre.
Also in the cast Kerry Ellis, Louise Dearman, Rachel Tucker, Rob Houchen, Jamie Muscato, Sharon Rose, Hiba Elchikhe and Carl Spencer.