My Worlds Acoustic is the debut remix album by Canadian singer 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 (2009), and first album My World 2.0 (2010), 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 (2010), which included songs from the previous two releases. My Worlds Acoustic was released to iTunes, on February 8, 2011.

Justin Drew Bieber is a Canadian singer. Regarded as a pop icon, he is recognized for his multi-genre musical performances. He was discovered by American record executive Scooter Braun in 2008 and subsequently brought to American singer Usher, both of whom formed the record label RBMG Records to sign Bieber in October of that year. He gained recognition following the release of his debut extended play (EP) My World (2009), which was quickly met with international commercial success and led to his establishment as a prominent teen idol.