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 121/520

Derek Johnson, with the Riverton Friend's Church in Kansas, cooks burgers for residents and workers on the north perimeter of the tornado devastated part of Moore, OK, Thursday, May 23, 2013, Photo by Paul Hellstern, The Oklahoman