Beatlemaniac

plural Beatlemaniacs

1. informalA devoted fan of the Beatles.

   1 more example

   For the millions of original Beatlemaniacs still alive, as well as the generations that have been introduced to the band by parents who either were at Shea Stadium that night or wished they were, at one time grew their hair long, and have am embroidered shearling hidden somewhere in the attic, the Beatles will always be here, there, and everywhere.

   2015, Hal Rubenstein, “We Loved You, Yeah, Yeah, Yeah: The Beatles Make Over the World, 1965”, in The Looks of Love: 50 Moments in Fashion That Inspired Romance, New York, N.Y.: Harper Design, →ISBN, page 185, column 2