Her voice is unrivaled in the pop music realm, and Kelly Clarkson** was all about showing off her polished pipes during her concert in Phoenix, Arizona.
The "Since You've Been Gone" songstress explained that she's loved No Doubt since she was a little girl before launching into a stripped down version of the band's hit "Don't Speak."
And of course, Kelly added in a few of her own vocal ad-libs to make the song her own as the packed house cheered.
Clarkson also noted that with No Doubt and Pink both releasing new albums soon, she'd be keen tour with both of them!
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