Background: Rucker was born and raised in Charleston, South Carolina, where his family history goes back generations. He lives in Charleston with his wife and three children. His single mother, Carolyn, a nurse at Medical University of South Carolina, raised him with his three sisters and two brothers. According to Rucker, his father was never around, and Rucker saw him only before church on Sundays.
Context: In early 2008, Rucker signed to Capitol Records Nashville as the beginning of a career in country music. His first solo single, "Don't Think I Don't Think About It" (which he co-wrote with Clay Mills) debuted at No. 51 on the Billboard Hot Country Songs charts for the week of May 3, 2008. It is the first single from his second album, Learn to Live. For this album, Rucker worked with Frank Rogers, a record producer who has also produced for Brad Paisley and Trace Adkins. Rucker also made his Grand Ole Opry debut in July 2008. The single reached number one in September, making Rucker the first solo, African-American artist to chart a number one country hit since Charley Pride's "Night Games" in 1983.  Learn to Live was certified gold by the Recording Industry Association of America (RIAA) on February 6, 2009 and received a platinum certification on August 7, 2009. The album's second single, "It Won't Be Like This for Long", spent three weeks at the top of the country chart in mid-2009. Its follow-up, "Alright", became Rucker's third straight No. 1 hit, making him the first singer to have his first three country singles reach No. 1 since Wynonna in 1992. The album's fourth single, "History in the Making" was released in September and peaked at NO. 3. The singles also crossed over to the Billboard Hot 100, peaking at 35, 36, 30 and 61.  Rucker's entry into the country world was met with some intrigue, largely because of his history as a rock musician and because he is African-American. Billboard magazine said that "there's a sense of purpose that makes Rucker feel like a member of the country family, rather than calculating interloper." Rucker made visits to various country stations around the United States, explaining that he was aware that he was the "new kid on the block." Mike Culotta, the program director of Tampa, Florida, radio station WQYK-FM expected that Rucker would be "somebody who would have entitlement," but instead said that "Darius engaged everybody." When Rucker found that "Don't Think I Don't Think About It" went to number one, he cried. On November 11, 2009, Rucker won the Country Music Association New Artist of the Year award (formerly known as the Horizon Award), making him the first African American to do so since the award was introduced in 1981. Only one other African American has won at the CMAs: Charley Pride, who won entertainer of the year in 1971 and male vocalist in 1971 and 1972.
Question: What is special about Ruckers voice, even still today?

Answer: