how do I download new songs for guitar hero 3 onto my ps3?

I am not computer illiterate but I am just not sure how to go about doing it and how much it costs and if there are good songs. Is there somewhere I can see a list of songs

You have to pay and download new songs off the Playstation Store on your PS3 system

Guitar Hero Warriors of Rock – PS3 | Wii | Xbox 360 – Set List Act 1 official video game trailer HD

Album II $8.25 Kem plays his soul-and-jazz-juiced R&B like a man who has lived through more than most of us, and indeed he has: As fans who have followed the back story since his 2003 debut, Kemistry, know, he’s an artist who was once reduced to sleeping on Detroit park benches while battling addiction. With the release of Album II, though, the sad stories need circulate no longer—all that’s required to get…

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Rock Throne Drum Stool $24.99 360-Degrees Swivel Seat / Sturdy Chrome Plated Base and Rubberized Feet…