- single player progression is more open
- choose to play the songs/venues you want
- as popularity grows, you get more money and fans, then you'll be asked to do Fan Requests
- Fan Requests are specific challenges for songs, such as playing through while avoiding bombs
- Tracks revealed by Nintendo Power:

Rusty Rocco's
Opening Act:
"Dimension" by Wolfmother
"Violet Hill" by Coldplay
"Where Are We Runnin" by Lenny Kravitz

Headline Act:
"Sweet Sacrifice" by Evanescense
"Reptilia" by The Strokes
"Unconditional" by The Bravery

Casino Vacarious
Opening Act:
"This Ain't a Scene, It's an Arms Race" by Fall Out Boy
"Everybody Get Dangerous" by Weezer
"Ruby" by The Kaiser Chiefs

Headline Act:
"Adrenaline" by 12 Stones
"The Metal" by Tenacious D
"Falling Down" by Atreyu

Link