Sinner is the ninth studio album by the Americanhard rock band Joan Jett and the Blackhearts, released June 13, 2006, by Blackheart Records Group. While most of the contents previously appeared on the Japan-only release Naked (2004), some in different mixes, it is her first record of new material released in the United States since Pure and Simple in 1994. Singles released include "A.C.D.C." (originally by Sweet) and "Riddles" (Jett's first-ever political song), which is a new version of "Right in the Middle" from Naked with different lyrics.
An edited "clean" version was also released. The CD also includes enhanced content, consisting of a lyrics sheet (in PDF format) and a video of the recording of "A.C.D.C.".