Wikipedia
"Mecha-Streisand" is the twelfth episode in the first season of the American animated television series South Park. It originally aired on Comedy Central in the United States on February 18, 1998. In the episode, Barbra Streisand obtains the Diamond of Panthios from Stan, Cartman, Kyle and Kenny, and transforms into a giant mechanical dinosaur called Mecha-Streisand. She is ultimately defeated by The Cure frontman Robert Smith, who himself transforms into a giant moth monster.
The episode was written by series co-creators Trey Parker and Matt Stone along with writer Philip Stark, and was directed by Parker. "Mecha-Streisand" parodies numerous popular Kaiju films and features portrayals of actor Sidney Poitier and film critic Leonard Maltin.
According to Nielsen ratings, "Mecha-Streisand" was seen by 5.4 million viewers, a record high viewership for a South Park episode at the time. Streisand herself was critical of the series and her role in "Mecha-Streisand", although Leonard Maltin was complimentary about his portrayal.