The Rock Band music store is all set to become even more beefy with the addition of six new songs from bands Slipknot, Simon & Garfunkel and Lights Resolve.

Each individual song will cost the traditional $1.99 (or 160 Microsoft Points and 200 Wii Points), while the Slipknot three-pack will cost $5.49 (or 440 Microsoft points). A single track from Lights Resolve will be free.

Check out the list of new songs hitting the Rock Band music store tomorrow (December 8th) for Xbox 360 and Wii, and on Thursday (December 10th) for PS3:

• Duality by Slipknot
• Psychosocial by Slipknot
• Sulfur by Slipknot
• I Am a Rock by Simon & Garfunkel
• The Sounds of Silence by Simon & Garfunkel
• Dreaming of Love by Lights Resolve