One of the most famous stories regarding these tracks is that Swedien mixed the song 91 times .
Here is an exploration of the unique elements found within these layers: The "Sonic Personality" of the Drums
: For the vocal overdubs, Swedien had Michael Jackson sing through a six-foot-long cardboard tube to create a specific acoustic distance and texture.
: Despite the complex production, Jackson reportedly nailed the lead vocal in a single take after warming up his voice every morning during the recording period. The 91-Mix Perfectionism