Reflecting back on her performance during the Idol Gives Back special, Jeff Beck described hern as having a "soul voice" that "demands attention"."
After attending a rehearsal for American Idol's season 6 finale (in which Kelly Clarkson was scheduled to perform), Blender magazine described her voice as follows:
Arion Berger of Rolling Stone has said of Clarkson that "her high notes are sweet and pillowy, her growl is bone-shaking and sxy, and her midrange is amazingly confident for a pop posy whose career is tied for eternity to the whims of her American Idol overlords.""The Texas native has one of the great voices in pop music, a powerful and versatile instrument that's steeped in the rhythm and blues and country music she grew up with in the South. If Mariah Carey's five-octave voice is the equivalent of an expensively bred poodle, then Clarkson's is a bloodhound: friendly, earthy, but fierce just the same."
Dr. Luke, a songwriter and producer of some her hits stated that "[Kelly Clarkson] She has powerful lungs. She's like the Lance Armstrong of vocal cords."
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