Aguilera asked Sia whether she wished to bring anyone to their first recording session of which Sia did, after she contacted her bass player Sam Dixon they wrote four tracks for Aguilera's "Bionic" record.
Aguilera asked Sia whether she wished to bring anyone to their first recording session which led to Sia contacting her bass player and songwriting partner Samuel Dixon. Together, Aguilera, Furler and Dixon wrote four tracks for Aguilera's "Bionic" record.