Rascal Flatts' Jay DeMarcus (left), songwriter Jason Sellers, Rascal Flatts' Joe Don Rooney and Gary LeVox and Big Machine Records' Scott Borchetta attend the No. 1 party for "I Won't Let Go" on Aug. 3, 2011, in Nashville. / Brian Tipton

"I Won't Let Go" Grabs No. 1 Spot (4)