[3][4][5] Inspired by David Gray's album White Ladder, Wigmore wrote her first song, "Angelfire", at the age of 14.

[7] Hallelujah was my way of telling my family I had dealt with dad's passing and honestly, I didn't want to share these feelings with anyone else.

Wigmore was the first artist signed with Island Records, a partner company with Universal Music Group, Australia.

During the week of 30 May 2010, all four of Wigmore's singles from Holy Smoke appeared on the NZ40 Airplay Chart, 'Too Late For Lovers' #7, 'Oh My' #23, 'Hey Ho' #24, 'I Do' #37.

In September 2011, Home Improvement Retailer Lowe's began a new brand campaign featuring Wigmore's single "Don't Stop".

Wigmore travelled for two months in Mississippi and Alabama to get a Southern United States inspiration for her second album which would be recorded in California under producer Butch Walker.

[10] In September 2011, Wigmore revealed the title and release of her new album Gravel & Wine on her official Facebook page.

The song was also used in television commercials for Guinness Black Lager and Nissan Rogue Midnight Edition (2017) in the United States.

[citation needed] "Kill of the Night" was also featured during season 2 of Teen Wolf, along with the series Pretty Little Liars and 666 Park Avenue, and AMC during its annual airing of Halloween movies and shows titled FearFest.The track was also the theme song to the 2016 E4 and Netflix mini series Crazyhead.

Commercials with the song include Alfa Romeo in Australia, Nationwide Insurance in the United States, and a worldwide short by Johnnie Walker.

[17] Gravel & Wine was released in the U.S. on 2 April 2013, and Wigmore appeared on the entire 2013 Vans Warped Tour.

On 29 January 2015, Wigmore posted the album cover and title of her the third LP, Blood to Bone, which was scheduled for release by Island Records on 26 June 2015.

[21] In the United States, Blood to Bone came out in August,[22] and entered the Billboard Alternative Albums chart the following month.

Later on 3 November, Wigmore dropped "Dirty Mercy", the lead single from her upcoming fourth album, which she had expected to release in 2017.

She has two older siblings: brother Oliver Wigmore is a scientist with a PhD in glacial hydrology,[31] while sister Lucy Wigmore, a professional actress known for starring as Justine Jones in the long-running New Zealand soap opera Shortland Street and a role in Underbelly: Razor.