Rock Band Cheats - Xbox 360

Unlock All Songs
At the "Rock Band" title screen press [Start] and then press [Red], [Yellow], [Blue], [Red], [Red], [Blue], [Blue], [Red], [Yellow], [Blue]. This will unlock all songs but you won't be able to save the game.

Achievements
Complete each of the following achievements below to get the allotted gamerscore:

AN-I-MAL!!! (50) - Finish Drum Solo Tour on Expert
Axe Assassin (40) - Finish Guitar Solo Tour on Hard
Big In Amsterdam (10) - Finish the last remaining gig in Amsterdam (Band World Tour)
Big In Japan (10) - Finish the last remaining gig in Tokyo (Band World Tour)
Big In LA (10) - Finish the last remaining gig in Los Angeles (Band World Tour)
Big In Berlin (10) - Finish the last remaining gig in Berlin (Band World Tour)
Big In Boston (10) - Finish the last remaining gig in Boston (Band World Tour)
Big In Chicago (10) - Finish the last remaining gig in Chicago (Band World Tour)
Big In London (10) - Finish the last remaining gig in London (Band World Tour)
Big In Moscow (10) - Finish the last remaining gig in Moscow (Band World Tour)
Big In Reykjavik (10) - Finish the last remaining gig in Reykjavik (Band World Tour)
Big In Rio de Janeiro (10) - Finish the last remaining gig in Rio de Janeiro (Band World Tour)
Big In NYC (10) - Finish the last remaining gig in New York (Band World Tour)
Big In Paris (10) - Finish the last remaining gig in Paris (Band World Tour)
Big In Rome (10) - Finish the last remaining gig in Rome (Band World Tour)
Big In Stockholm (10) - Finish the last remaining gig in Stockholm (Band World Tour)
Big In Sydney (10) - Finish the last remaining gig in Sydney (Band World Tour)
Big In San Francisco (10) - Finish the last remaining gig in San Francisco (Band World Tour)
Big In Seattle (10) - Finish the last remaining gig in Seattle (Band World Tour)
Breakthrough Act (10) - Unlock a Big Club in Solo Tour on Easy, Medium, Hard or Expert
Crooner (40) - Finish Vocal Solo Tour on Hard
Flawless Groove (10) - Score 100% notes hit as bassist, up-strums only, on Expert
Flawless Drumming (10) - Score 100% notes hit as a drummer on Expert
Flawless Fretwork (10) - Score 100% notes hit as a guitarist on Expert
Flawless Singing (10) - Score a 100% rating as a vocalist on Expert
Fret Ripper (30) - Finish Guitar Solo Tour on Medium
Groove Technician (30) - Finish Drum Solo Tour on Medium
Hall of Fame Inductee (100) - Finish the Hall of Fame Induction in Band World Tour
Gold Artist (20) - Finish the Endless Setlist in Band World Tour on Hard
Got Wheels (20) - Unlock the Van in Band World Tour
Heavy Hitter (40) - Finish Drum Solo Tour on Hard
Hot Artist (10) - Unlock a Theater in Solo Tour on Easy, Medium, Hard or Expert
Killer Performance (10) - Five Star a song on Easy, Medium, Hard or Expert
Lord of the Strings (50) - Finish Guitar Solo Tour on Expert
One Million Fans (10) - Reach 1 million fans in Band World Tour
Howler (20) - Finish Vocal Solo Tour on Easy
Jet Setter (20) - Unlock the Jet in Band World Tour
Open Road (20) - Unlock the Bus in Band World Tour
Platinum Artist (25) - Finish the Endless Setlist in Band World Tour on Expert
Score Duel Champ (30) - Win 20 Score Duel ranked matches
Score Duel Streak (20) - Win 5 Score Duel ranked matches in a row
Rhythm Rocker (20) - Finish Drum Solo Tour on Easy
Riding on Coattails (5) - Play with a "Platinum Artist"
Screamer (30) - Finish Vocal Solo Tour on Medium
String Shredder (20) - Finish Guitar Solo Tour on Easy
Tug of War Streak (20) - Win 5 Tug of War ranked matches in a row
Top Artist (10) - Unlock an Arena in Solo Tour on Medium, Hard or Expert
Tug of War Champ (30) - Win 20 Tug of War ranked matches
Vinyl Artist (10) - Finish the Endless Setlist in Band World Tour on Medium
Virtuoso (50) - Finish Vocal Solo Tour on Expert

Unlock Instruments
Perform the following tasks to unlock corresponding guitar/kit:

Silver Fender American Deluxe Stratocaster HSS - Complete Bonus Tour on Solo Tour with guitar.
Silver Kit - Complete Bonus Tour on Solo Tour with Drums.
Gold Kit - Complete Solo Tour with Drums.
Gold Fender American Deluxe Stratocaster HSS - Complete Solo Tour with guitar.
Golden Microphone - Score a million points in your singing career.

Unlock Unique Icons
Depending on the difficulty you complete Endless Setlist on you can unlock new and special icons to replace the standard one that appears during online play.

Inverted Colors Icon - Beat Endless Setlist on the Medium difficulty
Gold Icon - Beat Endless Setlist on the Hard difficulty
Platinum Icon - Beat Endless Setlist on the Expert difficulty

Don't Lose Fans (After Failing a Song)
If your band fails a song in Band World Tour mode you would normally lose fans. Instead, unplug one of your wired instruments and, with a different instrument controller, and go to "Return To Main Menu". This will exit out of your career and dump you back to the Main Menu. Go back to your Band career and you will notice that you haven't lost any fans!