Justin Bieber's new single "Boyfriend" is already drawing comparisons to Justin Timberlake and getting criticism for the whisper raps on the track, but our 10th Anniversary Complex cover boy is only getting started. For those wondering the Biebs' studio work ethic, this behind-the-scenes clip of him working on the single with Mike Posner should answer a lot of questions.

Take a trip inside the lab as Justin crafts layers of vocals, listens to the soon-to-be hit single and vibes out with his crew above.

Justin Bieber Covers Complex's 10th Anniversary Issue!!