The DJ Hero 2 pack of three new DJ Tiesto Mixes can be had for Xbox 360, PlayStation 3 and Wii simply by signing up for the beverage company's 'MyCoke Rewards' program, no purchase necessary. The Warriors of Rock pack of four My Chemical Romance tunes, meanwhile, is similarly free--sharing the same login--but is only available for Xbox 360 through this offer.

The two track packs will only be free until November 29 as starting November 30, they'll both be sold regularly on all three platforms. Their combined price will be $15.48, so you'll want to snag them for free while you can. Heck, if you don't own either game yet but have any inkling they might be in your Christmas stocking, sign up for a code anyway.

The track pack listings and a trailer for Tiesto's mixes follow below.

Tiesto Mix Pack Presented by Coca-Cola:

• "Traffic" Mixed With "Louder Than Boom"
• "Feel It In My Bones" ft. Tegan & Sara
• "Knock You Out" ft. Emily Haines Mixed With "Young Lions"

• "Bulletproof Heart"
• "Helena"
• "Teenagers"
• "Welcome To The Black Parade"