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Kelly Clarkson Marries Fiance Brandon Blackstock

The "American Idol" winner tied the knot in Tennessee over the weekend.

Kelly Clarkson PR 2012 purple P
Jill Greenberg
Kelly Clarkson

Kelly Clarkson is officially off the market.

The American Idol season one winner tied the knot with Brandon Blackstock in Tennessee on Sunday.

"I'm officially Mrs. Blackstock," the 31-year-old singer tweeted Monday. "We got married yesterday at Blackberry Farms in TN, the most beautiful place ever."

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For her special day, the bride wore a Temperley London wedding gown and, for a nice touch, donned a headpiece designed by season one alum Jim Verraros.

"Thnx Temperley 4 my beautiful dress!" Clarkson also captioned a third photo of her gown. "And thank you to my friend @JimVerraros & Maria Elena 4 the beautiful headpiece!"

Earlier this summer, Clarkson told fans the ceremony would be intimate and tweeted, "We are eloping for one reason only. We both want an intimate ceremony." 

This is Clarkson's first marriage. Blackstock, the stepson of country singer Reba McEntire, has two children from a previous marriage -- daughter Savannah, 12, and son Seth, 6. 

Next up for Clarkson is a Christmas special to be filmed later this month.

Twitter: @MicheleAmabile