...they are the only band on your i-pod
Hehe, yeah, I'm "guilty" of this one (except I don't have an i-pod)
When my friend saw my MP3 for the first time, she was like:
*excitedly*"oooh, can I see?"
... then after a few moments...
*much less excitedly*"do you have anything other than The Beatles on it?"
... I said I have some of their solo careers too, but that's not what she meant, apparently :B
Oh, I just thought of another "you know when you're a fan" sign:
... your passwords on the computer are Beatles-related