Looks like they got teh Rush pack sorted out and are re-releasing it next Tuesday with some other songs.

Hey everybody,

Looks like the technicals have been taken care of. Rush's "Moving Pictures" comes out for real next week! In addition we have tracks from Bad Religion, The Cult, Hot Hot Heat, Kasabian, Sleater-Kinney, and Stone Roses!

Rush's Moving Pictures Full Album

Tom Sawyer (orig version)
Red Barchetta
YYZ
Limelight (orig version)
The Camera Eye
Witch Hunt
Vital Signs

The full album will be available for $10.99 (880 Microsoft Points) or $1.99 (160 Microsoft Points) per track individually.

We are also releasing a bunch of individual tracks:

Bad Religion - Sorrow
The Cult - She Sells Sanctuary
Hot Hot Heat - Bandages
Kasabian - Shoot the Runner
Sleater-Kinney - You're No Rock N Roll Fun
Stone Roses - Love Spreads

Each of these tracks will be available individually for $1.99 (160 Microsoft Points).

All tracks are master tracks.

DLC comes out on Xbox 360 on Tuesday, September 23rd and on PS3 on Thursday, September 25th.

Source