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 365/520

Rescue command trailers are set up in front of Briarwood Elementary School was destroyed by the May 20th tornado in Moore, OK, Tuesday, May 21, 2013, By Paul Hellstern, The Oklahoman