Where We Left Off: ‘90210’ graduates! Naomi’s pregnant! Audriana’s suicidal! Annie’s single again (maybe)! Ivy’s married to Raj!

What's Next: Picking up after a summer of finding themselves, post-West Beverly, everyone (minus a few cast exits) is still dealing with their issues, and a few of them are even juggling college on top of that. In the show’s musical guest tradition, former ‘American Idol’ Kellie Pickler will stop by.

Season 4 premieres Tues., Sept. 13, 8PM ET on The CW