From the beginning of the pop-R&B jam “I Wanna Dance With Somebody (Who Loves Me)” to the final sustained notes of “I Know Him So Well,” every corner of Whitney is invigorated by the dynamism and momentum of Houston’s voice. At 23 years old, she was like a young athlete in peak form, operating in total control of an awe-inspiring gift. Whether on the uplifting energy of “Love Will Save the Day” or the simmering regret of “Where Do Broken Hearts Go,” her voice always leads the music in a gust of pure soul and exuberance.