Two new tracks are also being announced today, exclusively on IGN. They are:

Evenflow: Pearl Jam
Lay Down: Priestess

Evenflow is a much more fun song to play than the previous Pearl Jam song we've seen, Life Wasted, which was one of the 10 new tracks included on the Xbox 360 iteration of Guitar Hero II. It's also a master track, so you won't have to wonder how it will turn out other than note placement.

Lay Down is also a master track and it's one of those nice surprises that Guitar Hero games are known for. Priestess isn't a member of the rock pantheon so you might not have heard about them yet, but this metal song is a ton of fun to play. It's fairly fast and has a great riff to it. It isn't the toughest song to play, but the fast nature of it make it a nice choice for a Guitar Hero III battle.