'Idol' downloads: Clarkson, Underwood, Alaina

Looks like Kelly Clarkson's Stronger (What Doesn't Kill You) is shaping up to be a big ol' hit. Kelly's new single sees it second straight week of strong sales growth -- more than doubling this past week, according to Nielsen SoundScan.

A couple other Idol tracks saw significant jumps in downloads this week: Lauren Alaina's Georgia Peaches shot up 86%, while Carrie Underwood's Jesus, Take the Wheel saw a 46% spike in weekly sales.

Kelly Clarkson, Stronger (What Doesn't Kill You) (117,000 weekly, +141%, 348,000 total)
Kelly Clarkson, Mr. Know It All (45,000, -26%, 1.146 million)
Scotty McCreery, The Trouble With Girls (24,000, -34%, 437,000)
Brad Paisley/Carrie Underwood, Remind Me (17,000, -31%, 1.364 million)
Jennifer Lopez, On the Floor (12,000, -25%, 300,000)
Jason Aldean/Kelly Clarkson, Don't You Wanna Stay (10,000, -27%, 1.876 million)
Lauren Alaina, Georgia Peaches (7,000, +86%, 30,000)
Carrie Underwood, Jesus, Take the Wheel (7,000, +46%, 1.933 million)
Scotty McCreery, I Love You This Big (6,000, -42%, 761,000)
Carrie Underwood, Before He Cheats (5,000, -23%, 3.372 million)