American country music singer Toby Keith has released 20 studio albums and seven compilation albums. He has released 67 singles, with 65 of them charting on the Billboard country charts, of which all but ten reached top 40 or higher. 20 of his singles have reached number one in the United States, and 22 more have reached the Top 10. As of December 2013, Toby Keith has sold over 30 million albums in the US, which made him the fifth best-selling country artist in the US since 1991 when Nielsen SoundScan started tracking music sales.