You Really Got Me

You Really Got Me was a rock and roll song released in 1964 by the English musical group The Kinks; it is considered a classic of the era. The song was playing on a nearby radio when Maria Jackson, having been transported back in time from the early 21st century, encountered a young Sarah Jane Smith in an effort to restore the timeline. (SJA: Whatever Happened to Sarah Jane?)

Behind the scenes
It is established that Maria arrived in July 1964, which was actually a month before "You Really Got Me" was released. Presumably it was either being promoted via radio play in advance of its release as a single or, for reasons unknown, the song was released at a different time in the Whoniverse.