[10] In March 2015, Fantine joined three-time Grammy Award-winning singer/songwriter and producer, Wyclef Jean, at the Miami Beach Centennial Celebration Concert to perform a rendition of Killing Me Softly.

[15] Fantine's music career began in 2009 when she signed a management deal with The Coady Group[16] and relocated to Sydney.

In her first year in Sydney Fantine was introduced to Sydney-based band Space Invadas, the new project between Australian indie hip-hop producer Katalyst (musician) and Steve Spacek.

[20] From June through August 2010, Fantine spent time in the US and UK co-writing music for her forthcoming EP and Album with a series of writers including Australian ARIA Award winning writer Ben Lee, songwriter and producer Sacha Skarbek, and Leeds based writers/producers John Beck and Steve Chrisanthou.

In September 2014, she made a guest appearance and publicly debuted the song on Univision's hit show, El Gordo y la Flaca, and it simultaneously launched online on PeopleEspanol.com.

[36] In October 2014, Fantine performed her new single Reservation for Two at the People en Español's "Las 25 Mujeres Mas Poderosas"[37] luncheon in Coral Gables, Florida.

She was also seen in Miami later that month where she sang the Star Spangled Banner at the Dolphins vs. Green Bay Packers football game.

[40] She sang her two singles Bachata de Rosa and Reservation for Two and was accompanied by other featured performances and appearances by Jason Derulo, Trey Smith, Fantine, D.J.

[44] Soon after her performance, Fantine announced on her social media pages that her new song, What A Day, included co-production by Emilio Estefan and also featured Dominican reggaeton singer El Cata.

The official What A Day music video premiered on Vevo.com in July 2015[46] and a remix of the song is currently peaked at number 4 on the Billboard Dance Club Charts.

[47] Fantine was also featured as a guest vocalist with Space Invadas during the launch of their album Soul:Fi at the Oxford Art Factory (Sydney).

[49] Fantine also performed backing vocals for Eurythmics David A. Stewart, who accompanied Stevie Nicks as a special guest during her November/December (2011) tour of Australia.

[50] In February 2012 Fantine performed support slots for Erykah Badu, US based soul man, Mayer Hawthorne.