Braun quickly discovered what had happened and responded with good humor:

Braun is a big-time Talent Manager who represents Justin Bieber. His record label, Schoolboy Records/Interscope, recently signed pop star Carly Rae Jepsen.

Update: Based on the reference to “my brother Adam,” we assumed the prankster was Braun’s brother. Wrong (probably)! Twitter users agree it was likely Justin Bieber: