Guitar Hero: Warriors of Rock

This is simply unlocked by playing Quest Mode. In the quest mode path, select Echo Tesla (2nd on the path) and you will have to complete a number of stars by playing the songs in the setlist (9 in total) to make her transform to Warrior Echo. It will show a progress bar to show how close you are to the transformation.

Upon transformation you will then be able to do an Encore song which is "Uprising" by Muse.

Echo's is the second on the quest path (first or second choice).
Venue: Metallic Lab
Power: Star Power generator: Grants 5% of star power in level 1 and 10% when upgraded.
Song genres: Nu-Metal, Punk, Alt. Metal, Indrustrial Metal, and Indie Rock
Songs:
* Bleed it out - Linkin Park
* Tick Tick Boom - The Hives (From Lego Rock Band)
* Get Free - The Vines (From Band Hero (NDS Version))
* Machinehead - Bush
* I Know what I am - Band of Skulls (RBN DLC)
* Again - Flyleaf (Rock Band DLC)
* Lasso - Phoenix
* Slow Hands - Interpol
* Wish (Mistakenly labled as 2002) - Nine Inch Nails
* Uprising - Muse (Encore)
Upon completing Uprising (Which comes after getting enough power stars to transform) this achievement will unlock (Note: It's Story Related and impossible to miss).