Tuesday, 8pm

"Tis Pity"--LtoR: Michael Steger as Navid Shirazi, AnnaLynne McCord as Naomi Clark, Jessica Lowndes as Adrianna Tate-Duncan, and Matt Lanter as Liam Court on 90210 on The CW. Photo: Scott Alan Humbert/The CW ©2012 The CW Network. All Rights Reserved.
A Tale of Two Parties-
NICK CARTER GUEST STARS – A reluctant Naomi tries to sabotage the bachelorette party she has to host for Max’s (guest star Josh Zuckerman) fiancée Madison (guest star Caitlin Thompson), where Madison’s childhood crush, Nick Carter, makes a surprise appearance. At Max’s bachelor party, Liam and Navid get into a fight over Silver and the evening comes to an end with people at both parties getting hauled to jail. Meanwhile, Ivy blames Annie and Caleb (guest star Robert Hoffman) for Diego (guest star Yani Gellman) having to go on the run.
Jessica Lowndes and Tristan Wilds also star. Rob Hardy directed the episode written by Terrence Coli and Jenna Lamia.