What makes Backbone by Anthony Callea notable?

'Backbone' features a blend of classic covers and original compositions, highlighting Callea's ability to reinterpret iconic songs while reaching the Australian charts. The album's lead single, 'Hold On,' garnered significant radio play, further establishing Callea as a prominent figure in contemporary pop music in Australia. Anthony Callea released 'Backbone' as his fourth studio album, following the commercial success of 'Last to Go' in 2013. At this stage, Callea was solidifying his place in the Australian pop scene, showcasing both his vocal prowess and artistic growth after a period of relative quiet since his previous release.