[1] She began her career in 2002 as part of a Canadian R&B trio X-Quisite, who was nominated for a Juno Award for R&B/Soul Recording of the Year for their self-titled album (2004).

[2] Her follow-up single, "It Kills Me," became her breakout song on the US Billboard Hot 100 where it entered the top 50, peaked on the Hot R&B/Hip-Hop Songs chart, and earned her a Grammy Award nomination for Best Female R&B Vocal Performance.

In 2002, Fiona was part of a girl group called X-Quisite[7] alongside Nicole Holness and Nirvana Savoury.

Signed to Warner Music Canada, the group released their self-titled debut studio album X-Quisite in 2003.

At the 2004 Juno Awards, the group was nominated as one of five finalists for R&B/Soul Recording of the Year for the album X-Quisite.

According to Fiona, record labels "loved" the way she looked and sung, but she "knew that the minute I worked with them or would have signed with them, they would have tried to change me into someone else completely different.

"[7] She went on to co-write songs for recording artists Rihanna and Kardinal Offishall,[7] working with, amongst others, super producer Mike City.

[10][11] Entrepreneur Steve Rifkind discovered and signed Fiona to SRC Records and Universal Motown through Title 9 Productions in 2007.

[12] She released her debut album, The Bridge, in June 2009, which has sold 248,000 copies in the United States.

[13] Several singles were released from the album, including "It Kills Me", which topped the Billboard Hot R&B/Hip-Hop Songs chart for 10 weeks and earned her a Grammy Award nomination at the 52nd Grammy Awards for Best Female R&B Vocal Performance.

Due to "Priceless" not being released in Canada, "Monday Morning" served as the fifth single in Canada, due to hot adult contemporary radio station CKZZ-FM (Virgin Radio 953) in Vancouver having the song on its playlist.

"Ay Yo" was released as the fourth official single from The Bridge, according to Fiona's website and Twitter.

[17][18][19] On January 2, 2012, she performed "O Canada" at the NHL Winter Classic between the New York Rangers and Philadelphia Flyers at Citizens Bank Park.

[20] As a newly independent artist, Fiona announced she was working on her third album Awake in October 2013.

On May 12, 2015, she premiered a new song and lyric video "Bite the Bullet", which was set to appear on her new album in 2016.

The former song was produced by Andre Harris and co-written with singer-songwriter SiR, who also provides backing vocals.

[26] Originally they planned to marry on Amalfi Coast, Italy; but the COVID-19 pandemic forced them to postpone their wedding three times.

[30] Fiona cites Michael Jackson, Mariah Carey, Whitney Houston, Christina Aguilera, Sam Cooke, Sade, Amy Winehouse, India Arie, Patsy Cline and Bob Marley as her musical influences.

[5] She has received comparisons to Amy Winehouse, Lauryn Hill, Macy Gray, Chrisette Michele, Marsha Ambrosius and Jill Scott.