Activision has announced that the Knuckle Sandwich Track Pack for Guitar Hero World Tour is now available for Xbox 360, PS3 and Wii. The Knuckle Sandwich Track Pack features the following singles: Protest the Hero "Bloodmeat", Dropkick Murphys - "I'm Shipping up to Boston", and Against Me! - "New Wave". The Knuckle Sandwich Track Pack is available now via Xbox LIVE Marketplace for 440 Microsoft Points and from the PlayStation Store for $5.49. The songs are also available as singles for 160 Microsoft Points, $1.99 from the PlayStation Store and 200 Wii Points.