Her main influences came from '90s and '00s acts such as Christina Aguilera,[45] Lady Gaga,[46][47][48] Avril Lavigne,[49] Hikaru Utada,[50] Beyoncé, Katy Perry, Mariah Carey, Britney Spears, Kylie Minogue, JoJo, Gwen Stefani, Evanescence and Limp Bizkit among others.[51][52][53] In 2017, Sawayama was ranked in The Guardian's 18 for '18 list as well as Dazed's 100 list.[54][55] She has used Lady Gaga's vocal training method, bel canto, an Italian operatic exercise, to gain more treble and make her voice breathy.[46]