Former American Idol sensation David Archuleta still has the velvet-draped voice that helped him reach the talent show’s 2008 finale. But on Orion, he shows more of his inner self, revealing his foibles on the strutting synth-pop track “Invincible” and letting go of deep-seated fears on the tensely galloping “Numb.” Archuleta’s gentle yet firm vocals anchor the EP’s swirling textures and midtempo beats, while his pensive lyrics reveal the greater purpose behind his pop.