Who released the album which won its artists five awards at the 51st Annual Grammy Awards?
51st Annual Grammy Awards: The 51st Annual Grammy Awards took place at the Staples Center in Los Angeles, on February 8, 2009. 51st Annual Grammy Awards:  Robert Plant & Alison Krauss were the biggest winners of the night, winning five awards including Album of the Year for their critically acclaimed Raising Sand. Raising Sand:  It was released on October 23, 2007 by Rounder Records. Raising Sand:  "Raising Sand" won Album of the Year at the 2008 Americana Music Honors & Awards and at the 2009 Grammy Awards.
Rounder Records