Is there a way I can change the tempo of an existing song I import from iTunes??

Hi, Here's how to do basic timestretching in GarageBand : 1-In iTunes, drag the song you want to import to the desktop. 2-Drag the song file from your desktop to a GarageBand. It is best to set the GB song to match the tempo of your song beforehand. 2-The new region will be orange. 3-Select the orange region and hit Ctrl-Option-G and click once just under the region. It will turn purple. 4-Double click the new Purple region. 5-In the Audio Editor, check Follow Tempo & Pitch. 6-The new region will follow the tempo of your project. Keep in mind that other application like Melodyne and Ableton Live are better suited for this kind of task. Take care! Christian

Check out this how to video on this subject. -= https://www.youtube.com/watch?v=10rJZTgizd4 this is older version of GB, but your post is from '08 so this is prob what you were using. I'll have newer videos soon that will show how to do on newer version of GB. Very easy process.