The Secret World of Jeffree Star is an American web series created by YouTuber Shane Dawson. The web series was announced on July 24, 2018, through Dawson's Twitter which immediately attracted the attention of worldwide news outlets. Its premiere debuted August 1, 2018 on Dawson's YouTube channel. The series is presented by Dawson and stars himself and makeup entrepreneur and Internet personality Jeffree Star. Appearances by James Charles, Ryland Adams and Garrett Watts are also featured, with Dawson's film and editing collaborator Andrew Siwicki as camera operator for the duration of the series. The documentary focuses on the life of Jeffree Star, particularly his beginnings as a musician before leaving the industry to focus on his YouTube career and makeup brand.

Jeffree Star is an American internet personality, makeup artist, and former singer-songwriter. He is the founder and owner of Jeffree Star Cosmetics.