How I Wrote That Song: Mike Posner "Boyfriend"

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Mike Posner hung out backstage to share the story behind how he helped co-write and produce Justin Bieber's hit "Boyfriend" and the different rituals that take place during recording.

Appearing:Jimmy Fallon
Tags: The Tonight Show, Jimmy Fallon, How I Wrote That Song, Mike Posner, "Boyfriend"
S3 E1953 minWeb ExclusiveTalk and InterviewLatenight