"Christmas Don’t Be Late" by Alvin and the Chipmunks is one of the most beloved novelty hits of the holiday season — a true piece of Christmas pop-culture magic. Written and produced in 1958 by Ross Bagdasarian Sr. (better known as David Seville), the song introduced the world to Alvin, Simon, and Theodore, a trio of animated chipmunks who would go on to become cultural icons. Bagdasarian created the Chipmunks’ voices by recording his vocals at half-speed and then speeding up the tape — a ground