Buddy Holly was a musician.
While walking through the campus of the University of Cambridge in 1958, Salyavin heard Buddy Holly singing on a radio being carried by a student. (PROSE: Cambridge Previsited)
In 1992, Hugh and Janet had Buddy Holly records in their collection. (PROSE: Cat's Cradle: Witch Mark)
The Tenth Doctor cited Buddy Holly as a musician who had become a legend by dying in tragic circumstances, and asked the members of Pakafroon Wabster if they wanted the same thing. (COMIC: Interstellar Overdrive)
Clara Oswald, after having her English lesson on Pride and Prejudice interrupted by the Twelfth Doctor, came up with a scenario where Jane Austen and the Doctor met Buddy Holly. (TV: The Caretaker)