Every Day I'm Puzzlin'

So it is time for another fab groovy and hip edition of The Musical Puzzler, the only place where you can learn stuff you never knew you didn't really need to know but were forced to find out against your will anyway.

Last time I asked you about Phil Collins, a man whose name when mentioned can provoke sighs, groans, moans, or extreme violence. I happen to rather like the guy, but more for his work with Genesis and his first album, and also his acting, than for the great bulk of his solo work. It should not be forgotten that he is also a pretty damn kick-ass drummer, and for that I can forgive him all manner of things. however, the question concerned his acting career, or rather the early part of it when he was nobbut a lad. The question was what movie did he appear in as an extra at the tender age of thirteen? The answer was A Hard Day's Night.  Don't believe me? Here's a still from said flick.

It's really him!

So, new question:

Which Beatle is the only one without a star on Hollywood's Walk Of Fame?