90210 is returning for a fifth season. And to celebrate that renewal, the show will throw a couple of parties on Tuesday night.

Naomi will look to sabotage Morgan's bachelorette-themed shindig, while Liam and Liam will get into a brawl over Silver at Max's blowout. Based on this 90210 photo, it's possible alcohol will be involved.

Elsewhere: the cops will arrive, arrests will be made, Naomi will play with breasts implants and Nick Carter will make an appearance. Get your first look at what's to come in the following trailer and sneak peek:

NOTE: We'd updated our 90210 music section with the latest tracks from this week!

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.