Credit: Kevork Djansezian/Getty Images Photo: Carrie Underwood and Kelly Clarkson Perform at the 2013 Grammys

Two American Idol heavyweights took to the 2013 Grammy Awards stage tonight, but which one came out on top? (We'll admit that Carrie Underwood's crazy LED dress pretty much blew Kelly Clarkson's classic black dress out of the water.) It's an Idol diva face-off between Kelly Clarkson and Carrie Underwood. Watch their powerful performances and vote for your favorite below! 

Kelly Clarkson pays tribute to Patti Page and Carole King with performances of "Tennessee Waltz" and "Natural Woman":

Credit: YouTube Photo: Watch Kelly Clarkson Perform at the 2013 Grammy Awards (VIDEO)

Carrie Underwood performs "Blown Away": 

Carrie Underwood
Credit: YouTube Photo: 2013 Grammy Awards: Carrie Underwood Performs "Blown Away" & "Two Black Cadillacs"