Time to make sure that ol’ PlayStation Wallet is overflowing with credit because Harmonix and MTV Games are serving up limited time deals on PS3 Rock Band songs.

This sale on Rock Band downloadable content is to celebrate the October release of Rock Band 3 and it’s on right now. But hurry because you only have until the 4th of October to get up to 50% off select singles, song packs and albums from the Rock Band Music Store for the PS3.

“We hope our PlayStation 3 fans enjoy playing these specially-priced songs in Rock Band 2 today, and also in Rock Band 3 in just a few weeks time,” said Paul DeGooyer, senior vice president of music and games for MTV Games. “Rock Band set the standard for downloadable content in music games, and we continue to innovate as we close in on the release of our 2,000th song.”

A full list of the songs on sale from 21 September to 4 October follows below, including tracks from Megadeth, The Offspring and Foreigner:

SINGLES

• Content: R.E.M., “Losing My Religion”: Sale Price: $0.99, Original Price: $1.99

• Content:Flyleaf, “Again”: Sale Price: $0.99, Original Price:$1.99

• Content: Avenged Sevenfold, “Bat Country”: Sale Price: $0.99, Original Price: $1.99

• Content: The Runaways, “Cherry Bomb”: Sale Price: $0.99, Original Price: $1.99

• Content: Anberlin, “Feel Good Drag”: Sale Price: $0.99, Original Price: $1.99

• Content: Stone Temple Pilots, “Interstate Love Song”: Sale Price: $0.99, Original Price: $1.99

SONG PACKS

• Content: Slipknot 01: Price: $2.99, Original Price: $5.49

• Content: Night Ranger 01: Price: $2.99, Original Price: $5.49

• Content: Foreigner 01: Price: $2.99, Original Price: $5.49

• Content: Rise Against 01: Price: $2.99, Original Price: $5.49

• Content: The Offspring 01: Price: $2.99, Original Price: $5.49

• Content: The White Stripes 02: Price: $2.99, Original Price: $5.49

• Content: Nine Inch Nails 01: Price: $2.99, Original Price: $5.49

• Content: Foo Fighters 03: Price: $3.49, Original Price: $6.99

• Content: REO Speedwagon/Styx Tour ‘09: Price: $5.49, Original Price: $10.99

• Content: Creedence Clearwater Revival 01: Price: $9.99, Original Price: $19.99

ALBUMS

• Content: Jane’s Addiction, Nothing’s Shocking: Price: $7.99, Original Price: $15.99

• Content: Megadeth, Rust in Peace: Price: $7.49, Original Price: $14.99

• Content: Pantera, The Great Southern Trendkill: Price: $7.99, Original Price: $15.99

• Content: Rush, Moving Pictures: Price: $5.49, Original Price: $10.99