My Worlds Acoustic is the first remix album by Canadian recording artist Justin Bieber. It was released on November 26, 2010 and was initially sold exclusively at Walmart retail stores and Sam's Club. The album features nine acoustic versions of songs from his debut extended play, My World, and first album My World 2.0, as well as a new song "Pray. " The new versions of the songs were produced by Bieber's music director, Dan Kanter, his vocal producer Kuk Harrell, and also producer Rob Wells. Internationally, the set is included as a part of the compilation album, My Worlds: The Collection, which included songs from the previous two releases.My Worlds Acoustic was released to iTunes, on February 8, 2011.

According to Bieber, he wanted to release the album for the naysayers who critiqued his actual singing ability. The singer said that he wanted to have an acoustic album, to reflect the effect of production on his vocals. Although labeled as an acoustic album, the songs still include subtle usages of production and synthesizers. The album received generally favorable reviews from critics, however most critics were not satisfied that the album was not genuinely acoustic. In Canada, the song debuted at number five, and later peaked at number four on the Canadian Albums Chart and certified Platinum by the Canadian Recording Industry Association.My Worlds Acoustic debuted at number seven on the US Billboard 200, selling 115,000 copies in its first week, becoming Bieber's third consecutive top ten album.