The Real Housewives of Beverly Hills is back and the drama is in full swing.

In the upcoming premiere of season four, Kyle Richards and Yolanda Foster are in the middle of a nasty she-said, she-said fight.

During a chat with Lisa Vanderpump, Kyle reveals that she thinks that Yolanda is a liar!

“When I look at Yolanda, never would I associate her with being a liar,” Lisa tells Kyle in a preview clip, below.