Which My World-era Bieber song best captured his 2009-2010 breakout?

My World Teen Pop Breakout (2009-2010) poll options

My World Teen Pop Breakout (2009-2010)

Justin Bieber: My World EP to My World 2.0 (2009-2010)

Justin Bieber

• One Time launched the craze
• Baby was the defining anthem
• One Less Lonely Girl won hearts
• Somebody to Love sealed it