LedZep Question
 

What disc is "Hey Hey what can I do" on? Or is it just found on the Immigrant Song single?

I believe it was only released as a single, but i might be wrong. I do own their first 6 albums and that track appears on none of them.

Here`s what I dug up ...

Until it was released on their boxed set in 1990, this could only be found in America on the B-side of "Immigrant Song" and in England on an Atlantic Records record sampler.
Intended for release as a single. This was odd because Zeppelin put out very few singles in order to put a premium on albums.
Never performed live by Led Zeppelin. Jimmy Page and Robert Plant played it on their 1995 tour.

that is rather odd, and their refusal to give their back catalouge to the internet makes this song even harder to come by.

It means essentially you have to pay $5 for a song.