UPDATED Video: Blake Shelton and Miranda Lambert to perform "Over You" in honor of Oklahoma on "The Voice" tonight; Swon Brothers contending on tonight's show - Article Photos 339/520

Damage to the Plaza Towers neighborhood in Moore, Okla., on Wednesday, May 22, 2013. The area was heavily damaged by a tornado that struck on Monday, May 20, 2013. Photo by Bryan Terry, The Oklahoman