Apple pushed out an update for the iOS version of GarageBand on Sunday, bringing the popular music-making app to version 2.0.5. The update adds the option to purchase the RED Loop Pack, a limited-time in-app purchase that features an exclusive collection of 300 guitar, bass, synth and drum loops in a variety of genres.

The pack will only be available until December 7, via a $0.99 in-app purchase, but of course once paid forĀ it will be permanently accessible from the GarageBand loop browser. Apple says 100% of the proceeds will go to theĀ RED foundation, a charity that raises money forĀ aĀ global fund to fight AIDS, Tuberculosis and Malaria.

Apple has long been a supporter of Product (RED), churning out special editions of everything from iPods to iPad Smart Covers. Last year, the company’s Jony Ive and Marc Newson designed products for aĀ (RED) benefit auction, and in April, RED revealed that Apple had contributed over $70 million to the cause since 2006.

GarageBand for iOS is $4.99, or free if you recently purchased a Mac or iOS device, and is available in the App Store for both the iPhone and iPad. If you want to donate, but aren’t a GarageBand fan, a number of other appsĀ have “gone” (RED) this weekend to support the charity including Threes, Cut The Rope and more.