Kelly Clarkson became a household name overnight as the first winner of American Idol in 2002, then spent the next two decades proving the crown was no fluke — pivoting from pop belter to rock-inflected anthem-writer to Nashville-adjacent balladeer, all while keeping the same gale-force, gospel-trained voice at the center. She writes from the wreckage of her own life (a broken engagement, a messy divorce) with a bluntness that reads as therapy set to a hook, and she's as comfortable growling through a rock riff as she is holding a note across an entire arena. Her second act as a daytime talk-show host and viral cover artist ('Kellyoke') only underlined what was always true: the voice is the instrument, and the genre is whatever she feels like bending that day.
Clarkson has called Franklin the reason she isn't shy as a singer — the one voice that 'reached real down' in her and gave her permission to sound wrecked, angry, or cracked-open on record instead of merely pretty. Her Idol run leaned on Aretha covers, including the 'Natural Woman' performance often cited as her breakout moment, and her 2017 album The Meaning of Life was built around the guiding question 'what if Aretha was born now and made a record today.'
listen forPlay Franklin's 'A Natural Woman' next to Clarkson's 'Piece by Piece' — listen for the same instinct to let a note go slightly ragged at the emotional peak rather than clean it up. Franklin's phrasing treats pitch as secondary to conviction ('when it was slightly off-key, it was perfect,' as Clarkson put it); Clarkson's bridge on the confessional father-ballad chases that same raw, gospel-trained ache instead of technical polish.
Clarkson has said Houston 'lit a fire' in her as a vocalist ever since childhood, recalling how she'd race to the TV for every awards-show performance and then run to her room to try to replicate what she'd just seen. That chase shows up as Clarkson's love of the sustained, key-change power ballad — the big, controlled belt built to fill an arena rather than a booth.
listen forSet Houston's 'I Will Always Love You' — the key-change and the held note into the final chorus — against Clarkson's 'Stronger (What Doesn't Kill You).' Both are built around the same architecture: a triumphant modulation designed purely to give a powerhouse voice more room to detonate.
Carey's ballads were formative enough that Clarkson performed 'Without You' during her original American Idol run, and she has tweeted about wearing out Carey's records as a kid. Where Franklin gave Clarkson permission to sound raw, Carey supplied the melismatic runs and multi-octave reach that show up whenever Clarkson decorates a held note with runs instead of holding it flat.
listen forCompare Carey's 'Vision of Love' — the song that introduced the modern vocal-run showcase to pop radio — with the bridge of Clarkson's 'Because of You,' where she stacks rapid melismatic turns into the climax rather than just belting louder. It's the Carey playbook of ornamentation-as-emotion applied to a very different, more rock-adjacent song.