"The Body Acoustic" is the ninth studio album by American singer Cyndi Lauper, released in 2005. The album features acoustic re-recordings of ten of Lauper's most popular songs, as well as two new tracks. The title is a play on Walt Whitman's poem I Sing the Body Electric, with the word "body" referring to Lauper's extensive body of work as a recording artist.
The album was produced by Rick Chertoff, who had worked with Lauper on her 1983 debut She's So Unusual, and William Wittman, who had produced At Last (2003). It features a variety of guest artists, including Adam Lazzara (Taking Back Sunday), Shaggy, Sarah McLachlan, Ani DiFranco, Jeff Beck, Vivian Green, and the Japanese pop duo Puffy AmiYumi.
The record showcases Lauper's biggest hits, such as "Girls Just Wanna Have Fun", "Time After Time", and "All Through the Night", which are all reimagined with acoustic arrangements. The album also includes elements like Lauper playing the dulcimer on some tracks. It was released in multiple formats, including a DualDisc edition, which featured the album in enhanced stereo, four music videos directed by Lauper herself, and a behind-the-scenes featurette.
In an interview, Lauper mentioned that the album was a personal project rather than a career milestone and that it was more of a creative venture with the support of her record company. Notably, The Body Acoustic was the only album in Lauper's catalog to be copy-protected using Sony's controversial XCP technology at the time.