Glee apparently is using indie musician Jonathan Coulton's arrangement for his 2005 cover of Sir Mix-A-Lot's 1992 single, “Baby Got Back,” without giving Coulton any credit for his work and his Fans respond.
The Glee fandom is a very angry, divided fandom, which has resulted from poor, careless Schreiben and showrunning. Canon interpretation. Not Finchel-friendly.
