Justin Bieber is a Canadian singer-songwriter who gained fame at a young age through his YouTube covers and later signed with Usher's label, releasing his debut album, My World 2.0, in 2010. He quickly became a teen idol, known for hits like Baby and Sorry. Over the years, Bieber has evolved his musical style, incorporating elements of pop, R&B, and EDM into his work. He's also been open about his personal struggles and growth, making headlines for his public persona as well as his music.