Having cut her teeth as the killer-voice-for-hire on enormous Zedd and Rudimental dance tracks, south coast singer/songwriter Louisa Rose Allen unleashes her electro-sparked debut. Her own material sets those evocative vocals against surging, atmospheric dance-pop. “Youth” carries bittersweet end-of-summer vibes, while powerhouse singles like the gently choral “Holding onto Heaven” and the ethereal, glorious build of “Let Go for Tonight” shine a light on her superstar promise.