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OTRC: Miranda Lambert talks 'Healin' concert, $6 million raised (Video)

Miranda Lambert appears on 'Healing In the Heartland: Relief Benefit Concert,' which aired on May 29, 2013. (Trae Patton / NBC)

Miranda Lambert Tweeted on Friday, May 31, that she was "proud" to be a part of the "Healing in the Heartland" benefit concert.

The concert was put together by Lambert's husband, Blake Shelton, and NBC. Proceeds from the event went to help the people affected by the May 20 tornado in Moore, Okla. The program, which aired on May 29, featured an emotional and tearful performance by Lambert, which can be viewed below. She sang "The House That Built Me."

"I was so proud to be a part of "Healin In The Heartland" wed nite. Amazing," she wrote.

Organizers of the benefit concert told The Associated Press on Thursday, May 30, that the concert raised more than $6 million in pledges and ticket sales.

The money will go to the United Way of Central Oklahoma, which will distribute the funds to other agencies helping those who were affected by the tornado, according to the wire service.

Other performers at the event included Reba McEntire, Vince Gill, Rascal Flatts, Shelton's fellow "Voice" coach Usher, Darius Rucker and Luke Bryan.

Shelton is a native of Oklahoma and he and Lambert first met just before performing a duet of "You're the Reason God Made Oklahoma" at CMT's 100 Greatest Duets Concert in 2005. He and Lambert dedicated their May 21 performance of "Over You" on "The Voice" to people in Oklahoma.

Check out Miranda Lambert's emotional performance of "The House That Built Me" below.

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