By 2007 Brown had left to pursue her solo career as Ladyhawke, and Littlemore returned to his work with Pnau and later also formed Empire of the Sun.
Teenager was formed in 2004 in Sydney by Nick Littlemore as a side-project to his main group Pnau which had released their second album Again in October 2003.
Phillipa "Pip" Brown had left her native New Zealand after the disbandment of her hard rock group Two Lane Blacktop in 2003.
[3] For the album the duo of Brown and Littlemore used Sonic Youth's Lee Ranaldo (on guitar) and Steve Shelley (on drums), and Thierry Muller (on synthesiser) as session musicians.
So we jumped in the car, and he drove me out to his parents' house, and we recorded that song ... that was the start for me, where he helped me get the confidence.From late 2006 Teenager performed live with a line-up of Brown, Littlemore, Deano Cameron on bass guitar and Oscar Wuts on drums (both ex-Degrees.K, a New Zealand band).
Gigwise's Luisa Mateus found the duo "bring lascivious grooves to a seductively orientated debut, titled 'Thirteen' ... [it] draws on fast paced musical formations, a mismatch of sounds, poppy in places, but mainly littered with dirty but enthralling bass lines, sexually charged guitar rifts and sass by the bucket load".