La voce di Amy MacDonald viene classificata come [[contralto]].<ref>{{Cita web|url=https://web.archive.org/web/20121105191821/http://www.highbeam.com/doc/1P2-12967085.html|titolo=Chasing Amy: Her songs may appear naive, but Scotland's latest sensation is firmly in charge of the Amy Macdonald Project, she tells Aidan Smith|data=5 novembre 2012|lingua=en|accesso=28 agosto 2020|dataarchivio=5 novembre 2012|urlarchivio=https://web.archive.org/web/20121105191821/http://www.highbeam.com/doc/1P2-12967085.html|urlmorto=sì}}</ref> L'artista cita [[Travis]], [[The Killers]] e [[Rammstein]] come sue principali influenze.<ref>{{Cita web|url=https://www.heraldscotland.com/news/12760189.amys-first-million/|titolo=Amy's first million|lingua=en|accesso=28 agosto 2020}}</ref><ref>{{Cita web|url=http://www.theguardian.com/lifeandstyle/2008/may/10/popandrock|titolo=Playing the guitar: Amy Macdonald on what inspired her to pick up a guitar|autore=Guardian Staff|data=9 maggio 2008|lingua=en|accesso=28 agosto 2020}}</ref><ref>{{Cita web|url=https://www.liverpoolecho.co.uk/|titolo=Liverpool Echo: Latest Liverpool and Merseyside news, sports and what's on|lingua=en|accesso=28 agosto 2020}}</ref>