- Country: USA
- Genres: Comedy, Short
- Release: 2017-06-29
- Director: Lucia Aniello
- Writers: D’Arcy Carden , Jen Statsky
- Language: English
- Stars: Alana Haim , Danielle Haim , Este Haim , Brie Larson , Carnie Wilson
- Runtime: 4 min
- Awards: N/A
- AKA: Why You've Never Met the 4th Haim Sister (United States of America) , Why You've Never Met the 4th Haim Sister
- Plot: Frime Haim, a.k.a the other sister, is finally ready to join the family band. Something tells us her sisters aren't thrilled about that.
- IMDB:tt7111944
Why You’ve Never Met the 4th Haim Sister Cast · · · ALL
Lucia Aniello
Director
Alana Haim
Alana Haim
Danielle Haim
Danielle Haim
Este Haim
Este Haim
Brie Larson
Frime Haim
Carnie Wilson
Mrs. Haim