Thsi is a well assembled career-spanning compilation from Christina Aguilera that, as the title implies, charts the golden throated songstress's evolution from her early years as a seemingly effervescent teen pop sensation to her later incarnation as a more mature artist with self-consciously high artistic aspirations.
Though Aguilera seemed uncomfortable with the comparisons to teen icons like Britney Spears and Kelly Clarkson that dogged her early career, singles like "Genie in a Bottle" and "You Are Beautiful" are sterling examples of cannily written, dance-floor-oriented pop, and compare favorably with much of Aguilera's later output. Though KEEPS GETTING BETTER places a marked emphasis on newly recorded tracks like "Keeps Getting Better" as well as material from BACK TO BASICS, Aguilera's R&B-inflected 2006 release, it's those infectious early singles that make this compilation truly essential.
Entertainment Weekly (p.72) - "The singer has banished melisma and belting from these electronic confections, and her chops sound just as hot set on simmer." -- Grade: B+