Pharrell Williams Pharrell Williams (voice) Chad Hugo Chad Hugo (voice) Gwen Stefani Gwen Stefani (voice) Kendrick Lamar Kendrick Lamar (voice) Timbaland Timbaland (voice) Justin Timberlake Justin Timberlake (voice) Busta Rhymes Busta Rhymes (voice) Jay-Z Jay-Z (voice) Snoop Dogg Snoop Dogg (voice) Morgan Neville Morgan Neville (voice) Pusha T Pusha T (voice) N.O.R.E. N.O.R.E (voice) Oprah Winfrey Oprah Winfrey (voice - archival footage) Missy Elliott Missy Elliott (Voice) Helen Lasichanh Helen Lasichanh (voice) Jimmy Iovine Jimmy Iovine (voice) Teddy Riley Teddy Riley (voice) Tyler, The Creator Teacher (voice) Carl Sagan Carl Sagan (archival audio)