BlizzCon is a video game convention held by Blizzard Entertainment to promote their major franchises. The first BlizzCon was held in October 2005 at the Anaheim Convention Center in the United States where it has been held ever since. The convention features game-related announcements, previews of upcoming Blizzard Entertainment games and content, Q&A sessions and panels, and playable versions of various Blizzard games. The closing night has featured concerts by The Offspring, Tenacious D, Foo Fighters, Ozzy Osbourne, Blink-182,  Metallica, and Linkin Park.