This was announced earlier so you may have heard about it. For those of you who are watching the ACM’s live right now, don’t read any further, if you don’t want to know. Thompson Square is the Academy of Country Music’s vocal duo of the year. The award was won Saturday night during the ACM Salute to the Military concert in Vegas. The remaining awards will be handed tonight. Thompson Square beat out reigning winner Sugarland, Steel Magnolia, Montgomery Gentry and Love and Theft. The Thompsons are the first duo other than Brooks & Dunn or Sugarland to win the award since 1991. The Dixie Chicks trio won in 1998-99 when it was given to duos or groups.