spjk2k you are incredibly passionate about this. According to my ears in addition to me singing along and playing it on the piano...it's an Eb3, but I could be wrong because I am not a professional they way you are, music is just a hobby for me, I am no where near as passionate as you are! And by the way, you were completely right about "Behind These Hazel Eyes" even though I know you knew that already, I played it on the piano, studio and acoustic both are F#5 in the bridge. About the Eb3 this is what I am hearing...I hear Kelly say You've taken over me(F3)ee(Eb3) While she also sings over those vocals. And some other low notes from Kelly, when she sang "Walk on by" on American Idol she hit some lower notes. And another high note from Kelly, listen to the American Idol group performance of "Joy to the World" where at the very end, Kelly hits a D6 I think and it's in falsetto if I am not mistaken.