No Beatle Cloning

DR. CARY: Sadly, soon after the project began, we lost a lot of funding, so later bands like the Pixies and Nirvana were never cloned.
JOEL: But what about older bands? Like the Beatles? Why not clone the most successful rock band of all time?
JOEL: I guess back then you thought those bands would be just as successful.
DR. CARY: Well, there were also legal issues.
DR. CARY: Michael Jackson owns the rights to the Beatles DNA...
JEFF LYNNE: I was the fifth Beatle!
JOEL: Hey! A clone of Jeff Lynne!