Blake Shelton's "Some Beach" is spending its third week at No. 1 on Billboard's country singles chart. Shelton's debut single, "Austin," stayed at No. 1 for five weeks in 2001. Also in Billboard's Jan. 8 issue, Shania Twain's Greatest Hits remains at No. 1 on the country albums chart, followed by Toby Keith's Greatest Hits 2, Tim McGraw's Live Like You Were Dying and Gretchen Wilson's Here for the Party.