Canadian pop singer Justin Bieber, who first gained fame as a teenager through YouTube displaying his self-taught musical abilities, performs "Mark My Words." Born in London, Ontario, on March 1, 1994, Bieber learned to play instruments such as the piano, guitar, drums, and trumpet at a young age. His music career began with his debut album, *My World*, in 2009, followed by *My World 2.0* in 2010, which made him the youngest solo male artist to top the Billboard 200 since Stevie Wonder. Bieber's third studio album, *Believe* (2012), incorporated R&B and electronic dance music, marking a shift from bubblegum pop to a more mature sound. In 2015, Bieber released *Purpose*, which reflected his personal growth and introspection, featuring hits like "Sorry," "What Do You Mean?," and "Love Yourself." His album *Changes* (2020) explored his experiences with love and marriage, while *Justice* (2021) addressed social issues and personal struggles.