We're so upset, because they were our favorites!

Brandi Glanville and Yolanda Foster will not be returning to the Real Housewives of Beverly Hills cast, TMZ reports. The ladies, along with Kim Richards, will be replaced by newcomers. While Brandi reportedly got the boot because of her behavior problem, Yolanda is simply too sick with Lyme's Disease to continue filming.

Miss Glanville's co-stars are allegedly fed up with her bitchy antics, and she has been engaged in very volatile feuds with Kyle Richards and Eileen Davidson. Poor Yolanda's health crisis has worsened in recent months, and she simply doesn't have the energy to put into the Bravo production anymore.

Kim Richards didn't really have a choice in the matter, as she was forced into rehab after a very public meltdown and battle with substance abuse.

We wonder who they will add to the group?!