Album: My World Album by Justin Bieber

My World is the debut extended play (EP) by Canadian singer Justin Bieber. It was released on November 17, 2009, by Island, RBMG and Schoolboy Records. The EP is considered the first half of a two-piece project, later being supplemented by Bieber's debut studio album My World 2.0 (2010). After signing a recording contract in light of his growing popularity on YouTube, Bieber worked with various collaborators, including his mentor Usher and producers Tricky Stewart, D'Mile, and MIDI Mafia. The EP's music incorporates pop and dance-pop styles with R&B influences, and lyrically discusses teen romance and coming of age situations.

Upon its release, My World received generally favorable reviews from music critics, who complimented its production. It debuted at number six on the US Billboard 200 albums chart with first-week sales of 137,000 copies. In doing so, it became the strongest-debuting release for a new artist in the United States in 2009, though it was topped the following week by I Dreamed a Dream by Susan Boyle, which moved 701,000 units in its debut week. Upon the release of My World 2.0 in March 2010, My World reached a new peak of number five on the Billboard 200. The extended play attained international success. It debuted atop the Canadian Albums Chart, where it was later certified double Platinum. It additionally attained double Platinum recognition in the United Kingdom.

Two singles were released from My World, both of which became international successes. The lead single, "One Time", reached the top twenty in five countries' singles charts, while its follow-up, "One Less Lonely Girl", peaked within the top ten in Canada and top twenty in the United States. The promotional singles "Love Me" and "Favorite Girl" also peaked in the top forty of the US Billboard Hot 100 songs chart in 2009. The project was additionally promoted through television appearances and the My World Tour in 2010. The remix album My Worlds Acoustic and compilation album My Worlds: The Collection were released later in November 2010; the latter packaged My World, My World 2.0, and My Worlds Acoustic into a two-disc set.

On February 12, 2016, My World was released on vinyl for the first time.