In 1997 she recorded a song, "Another Tear", following the death of Princess Diana, which was written and produced by Reno Nicastro and Molly Meldrum.
[5] In 2005 Aitken worked as a songwriter, she co-wrote four tracks on Ricki-Lee Coulter's debut self-titled album (October: "Turn It Up", "Something About You", "Stay with Me" and "Hello".
In 2007, Aitken, Tamara Jaber (ex-Scandal'us) and Reigan Derry (Australian Idol contestant, 2006) formed an all-girl pop trio, Scarlett Belle, and were signed to US label, Def Jam Recordings.
During the 2010s, Aitken has written or co-written material for other artists: September's "White Flag" on Love CPR (February 2011), "I Know You're not Alone" on Diamond Veil (May) by Sweetbox, Julie Bergan's "Fire" (June 2014), "Colours" on Eleven (October 2015) by Tina Arena and "Traffic Lights" (May 2015) on Lena's Crystal Sky.
[7] Also in 2015, while working in Swedish-based song writing collective, the Kennel, Aitken co-wrote "I Want Your Love" for Ukrainian-born artist, Eduard Romanyuta.