Best Of..., also referred to as Sia: Best Of..., is the first greatest hits album by Australian singer-songwriter Sia, released in Australia on 30 March 2012 through the Sydney-based independent record label Inertia. The compilation includes tracks from four of Sia's previous studio albums: Healing Is Difficult (2001), Colour the Small One (2004), Some People Have Real Problems (2008) and We Are Born (2010).