So I just created a new band profile and I'm having trouble adding songs. So far we only have one song recorded on GarageBand and sent to ITunes, I tried to upload the Mp3 from ITunes and it keeps saying wrong file format. Can anyone help me out? I am very new at doing things like this, I have no myspace or facebook so I have no experience whatsoever in uploading Mp3's and such, so thank you in advance for helping me out and your patience with my N00bness.
Most likely it is not an mp3 file. Go to Preferences on iTunes, make sure the importing format is set to mp3. Then right click on the song in iTunes, click 'convert to mp3', upload this new file.