Perhaps no band in the real world has had quite as much of an impact on the world of Doctor Who as the Beatles did. Both were of course fantastic products of England in the '60s, but some of the connections go far deeper than a contemporary complementary pop-culture acknowledgment.
Almost every single incarnation of the Doctor has in some way participated in or manipulated the history of the Fab Four. In fact, there is at least one universe where the band was still active up to the Live Aid concert in 1985. A companion of the Eighth Doctor from his post-TV movie book series, Fitz Kreiner, made it a point to collect alternative timeline Beatles releases, and could play "Let it Be" on the piano.
Presumably that means he has a copy of "Colliding Circles" and "Left is Right (And Right is Wrong)."