Butterfly Giselle Grace Boucher is an Australian singer-songwriter, multi-instrumentalist and record producer born in Adelaide. From the age of 15 years she played bass guitar in her older sister Rebecca Boucher Burns (Becca)'s band Eat the Menu, which issued a debut album, Whoosh, in 1996. Since mid-2000 Boucher has lived in Nashville, United States, and has released four solo albums, Flutterby, Scary Fragile, a self-titled album, and a 10th-anniversary celebration of Flutterby called Happy Birthday Flutterby. Since 2008, Boucher has recorded material for Ten Out of Tenn, a Nashville-based music collective. Boucher is also a member of the pop rock trio Elle Macho.

Melissa Morrison Higgins, stage name Missy Higgins, is an Australian singer-songwriter and musician. Her Australian number-one albums are The Sound of White (2004), On a Clear Night (2007) and The Ol' Razzle Dazzle (2012), and her singles include "Scar", "Steer" and "Where I Stood". Higgins was nominated for five ARIA Music Awards in 2004 and won 'Best Pop Release' for "Scar". In 2005, she was nominated for seven more awards and won five. Higgins won her seventh ARIA in 2007. Her third album, The Ol' Razzle Dazzle, was released in Australia in June 2012. As of August 2014, Higgins' first three studio albums had sold over one million units.