Andrew was born in Wellington.[1] She attended Marsden School, graduating in 2007.[2] She studied at the New Zealand School of Music with Margaret Medlyn, where she graduated in 2011 with distinction.[2] She became an emerging artist at the New Zealand Opera in 2013. Supported by a grant from the Kiri Te Kanawa Foundation in 2014, she studied further at the Guildhall School of Music and Drama in London with Yvonne Kenny where she graduated with a master's degree in 2017.[2] She won the Song Prize of the Kathleen Ferrier Awards at Wigmore Hall in 2016.[2] Andrew appeared as Bernardo in Goldschmidt's Beatrice Cenci at the Bregenzer Festspiele, and as Flamel in Offenbach's Fantasio at the Garsington Opera.[1]
Andrew became a member of the ensemble of the Oper Frankfurt, where her roles included a title role in Humperdinck's Hänsel und Gretel, as Cherubino in Mozart's Le nozze di Figaro, and Mercédès in Bizet's Carmen.[1] In 2023, she created the leading role of Aurelia von Tümmler in the world premiere of Blühen, a chamber opera by Vito Žuraj based on a short story by Thomas Mann, molded into a libretto by Händl Klaus. It was given by Oper Frankfurt at the Bockenheimer Depot, directed by Brigitte Fassbaender.[3][4][5]