In 2009, she finished as runner-up in the seventh and final Australian Idol, and was noted for her high-energy performances and vast vocal range.

Hayley co-wrote Grammy nominated artist Tori Kelly's single "Hollow", which was released 3 November 2015.

Warner signed to Sony Music immediately after finale, and released her debut "Good Day" in December 2009.

In 2012, she signed a worldwide publishing deal with Sony ATV and began collaborating with songwriter and producers all around the world.

[4] Warner co-wrote "Good Night" which was chosen by Sony Records to be the first single for The X Factor Australia season 3 winner Reece Mastin.

"Good Night" is the fastest selling digital single by an artist signed to Sony Music Australia in history.

She co-wrote "Freedom" for artist Stan Walker that was selected for a three-year TV advertising campaign for The Salvation Army in Australia and New Zealand.

In 2013, she co-wrote the two runner-up singles for X Factor Australia contestants Taylor Henderson and Jai Waetford.

1 on the ARIA Album Charts, achieved Gold status within a week of its release, and is now certified Platinum.

The album's fifth single "Brighter Days" is now being used as the theme song for the highest rated national morning TV show in Australia, Sunrise.

[5] After penning multiple hits for various artists around the world, Warner found it vital to find her own voice and write about the stories of her own life.