Justin Bieber's 'Boyfriend' Had Different Lyrics When Mike Posner Wrote It

Mike Posner is quite the prolific dude. He made it big in 2010 with "Cooler Than Me," and recently had a resurgence with 2015's "I Took a Pill in Ibiza." In between, he wrote songs for other artists, and that includes the one and only Justin Bieber.

Yep, Posner penned Bieber's 2012 breakout "Boyfriend" with Mason D. Levy and Mat Musto. And like it goes in the music industry, a lot of songs get tossed around, making the final version a lot different from the initial idea.