In the battle of JB vs. JB, who wins? Well, at the box office, it's definitely JB = Justin Bieber.

Justin Bieber: Never Say Never 3D earned $12.4 million on its opening day Friday -- which is two and half times what the Jonas Brothers: The 3D Concert Experience earned, according to Box Office Mojo.

VISIT IT: Justin Bieber: Never Say Never Microsite

Justin's movie also beat out Miley Cyrus' Hannah Montana/Miley Cyrus: Best of Both Worlds Concert Tour movie, which earned $8.7 million its first day, and even Michael Jackson's This Is It, which made $7.4 million on opening day.

Projections say that since Justin Bieber's 3D movie will attract a lot of repeat viewers a second time (or third or fourth...), it could truly hit box office highs.

How many times have you seen Justin Bieber: Never Say Never 3D? What was your favorite part?

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