This week on Guitar Hero: World Tour is a Rise Against track pack, however, one of the songs on the pack, "Death Blossoms", is an unreleased song which is making a debut on Guitar Hero.
The track pack consists of;
Audience of One
Ready to Fall
And will be available from 12th March for 440 Microsoft points.
As well as this, on March 14th from 1:00 to 3:00 PM Central (11:00 AM to 1:00 PM Pacific) you will be able to have the chance to play Guitar Hero: World Tour with Tim McIlrath (Rise Against's lead vocalist). To do this simply add the gamertag GHRiseAgainst1.