Article Photos: 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 394/519

This aerial photo shows the remains of homes hit by a massive tornado in Moore, Okla., Monday May 20, 2013. A tornado roared through the Oklahoma City suburbs Monday, flattening entire neighborhoods, setting buildings on fire and landing a direct blow on an elementary school. (AP Photo/Steve Gooch) ORG XMIT: OKOKL109