It`s Official: Kelly Clarkson Marries Fiance Brandon Blackstock.

Kelly Clarkson has finally tied the knot with her fiance Brandon Blackstock. The "Catch My Breath" singer said "I do" in Tennessee on Sunday, Oct. 20.

"I'm officially Mrs. Blackstock," Clarkson, 31, tweeted Monday, Oct. 21 with three gorgeous photos from the wedding. "We got married yesterday at Blackberry Farms in TN, the most beautiful place ever!"

I'm officially Mrs. Blackstock :) We got married yesterday at Blackberry Farms in TN, the most beautiful place ever! pic.twitter.com/vYYqopBAcr
— Kelly Clarkson (@kelly_clarkson) October 21, 2013

This is the first marriage for Clarkson. Blackstock, who is the stepson of country singer Reba McEntire, has two children from a previous marriage -- daughter Savannah, 12, and son Seth, 6. The couple and his two children already live under the same roof, but the "People Like Us" singer is hoping to expand. She laughed, "I want two kids. Two more, that is. I've already got two!"

Congrats to both....