John Lennon

All four members of the band can be heard on the newly completed track.

Some of these cases haven't even been solved yet.

4th Grader Stuns Talent Show With Rendition of "Imagine"

Beatles fans often clamor to get their hands on just about anything related to the Fab Four, but this is one piece of memorabilia that may give pause to even the most rabid collector: a tooth, purportedly pulled from the mouth of John Lennon.