Her first single, "That Girl" was featured on an Australian Promo CD for Britney Spears - Stronger.
Her second single "Kiss Me Quick" contained a b-side of a track she wrote when eleven years old If I Was To Say. Hayley co-wrote four tracks which appeared on Australian Idol contestant Ricki-Lee's debut album; "Turn It Up", "Something About You", "Stay With Me" and "Hello". also provides backing bocals to "Something About You", "Stay With Me" and "Hello" on Ricki-Lee's album. After her contract with Jive ended, she was signed by Legit music under a management contract. Legit Music currently still states that she is on their artist roster, however on Hayley's MySpace, she has placed her record label as "none". She is currently signed to Sony BMG publishing.
In 2002, she recorded a song for the Undercover Angels soundtrack, "[You Must Be An] Angel", written by Erinn Sherlock and Andy Sidari.
In an August 2007 edition of TV Week, it was announced that Hayley, Tamara Jaber and 2006 Australian Idol contestant Reigan Derry were forming a girl band, and are currently recording a demo in LA.