Ever since she was six years old, the singer Barbra Streisand coveted the fabled Triangles of Zinthar to assemble the Diamond of Pantheos and become the mighty mechanical kaiju known as Mecha-Streisand. Her mother was a jackal and her father an insurance agent, and her enormous nose and horrific singing attracted the attention of film critic Leonard Maltin, who saw to it the Triangles were divided at opposite ends of the world. It wasn't until Eric Cartman and Kyle Broflovski discovered the final triangle that her plan came together - only with the help of Sidney Poitier and Robert Smith was she defeated and blown apart. Her hatred for the town of South Park only grew.
The actress - and incident - remained infamous, and her remains were eventually collected and rebuilt by Tom Cruise and Rob Reiner, with Mel Gibson re-locating the Diamond of Pantheos so she could be re-activated. Her appetite for destruction had only grown, and she destroyed Casa Bonita and even killed a brave Pip Pirrup as he boldly stood up to the four-hundred foot robot. It was only when the Super Best Friends arrived that she was defeated, singing a duet with Neil Diamond and releasing toxic stink spray to the audience.
Her current whereabouts are unknown, but rumor is she recently chose Gerald Broflovski to be her lawyer.
- Mecha-Streisand (s01e12)
- Spookyfish (s02e15; human form; Spooky-Vision only)
- Osama bin Laden has Farty Pants (s05e09; human form in photograph)
- Pre-School (s08e10; mentioned)
- 200 (s13e05)
- 201 (s14e06)
- Various elements of her design are inspired by various Godzilla films, primarily the oldest and newest films.
- The original version of Mecha-Streisand is a homage to, and resembles, MechaGodzilla in the 1974 film Godzilla vs. MechaGodzilla and it's direct sequel, the 1975 film The Terror of MechaGodzilla.
- The MS-2010 build seen it later episodes mixes elements of the third version of MechaGodzilla, Kiryu, from the 2002 film Godzilla Against MechaGodzilla, it's sequel Godzilla: Tokyo S. O. S. and the updated version of Gigan from the 2004 film Godzilla: Final Wars.
- Her toxic stink spray may be a homage to the monster Hedorah from the 1971 film Godzilla vs. Hedorah.