The Moment of Truth World Tour was the second worldwide tour by American recording artist Whitney Houston and supported her multi-platinum hit album Whitney. The trek started on July 4, 1987 in North America and continued overseas during 1988 in Europe, Asia and Australia.

Whitney Elizabeth Houston was an American singer, actress, film producer, and philanthropist. Known as "the Voice", she is one of the most awarded entertainers of all time and among the best-selling music artists of all time, with sales of over 220 million records worldwide. Houston is known for her crossover appeal on popular music charts that influenced the breaking down of racial barriers, the recording industry, and popular culture, as well as her powerful, soulful vocal performances, the popularization of using gospel singing techniques in pop music, and film production. In 2023, she was ranked second on Rolling Stone's list of the greatest singers of all time. Houston had 11 number-one singles on the Billboard Hot 100 and is the only artist to have seven consecutive number-one singles on the chart. She also enhanced her popularity by entering the film industry. Her accolades include eight Grammy Awards, 22 American Music Awards, two Emmy Awards, and 30 Guinness World Records. Houston's inductions include the Grammy Hall of Fame (twice), the Rock and Roll Hall of Fame, the Rhythm and Blues Music Hall of Fame, the BET Walk of Fame, the Soul Train Hall of Fame, the Georgia Music Hall of Fame, the New Jersey Hall of Fame, and the National Recording Registry at the Library of Congress.