So... Naomi is NOT pregnant and Annie is NOT marrying Liam. We learned both these facts on the season four premiere of 90210.

But what are these young women doing? On next Tuesday's new episode, they are rushing a sorority. What else can you expect to do own on the aptly-titled "Rush Hour," which is previewed in the video below?

• Annie learns a secret about Jeremy.
• Liam is visited by someone from Alaska.
• Navid and Silver are forced to ask Adrianna for help.