Guitar Hero, Rock Band Won't Make Billions For EA, Activision By: Benzinga via Benzinga May 06, 2015 at 08:24 AM EDT Activision Blizzard, Inc. (NASDAQ: ATVI) is bringing back "Guitar Hero," a franchise that once earned $2 billion in a ... Read More >> Related Stocks: Activision Blizzard Bio-Techne Cp Electronic Arts