Miranda Lambert was moved to tears during Wednesday night's "Healing the Heartland: Relief Benefit Concert."

As she performed her song "The House That Built Me" at the concert benefiting tornado victims in Oklahoma, the singer was overcome with emotion and got choked up. 

While she took a few moments to compose herself, the crowd started to sing the song for her in unison.

Miranda also mouthed the words "I'm sorry" to the audience, who didn't seem to mind one bit.

Lambert was only one of the performers at the event, which was organized by the singer's husband (and Oklahoma native), Blake Shelton.

The concert raised money for the United Way of Central Oklahoma May Tornadoes Relief Fund.

For more info on how you can help, go to the United Way's official website.

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