Someone will be an escort. A couple will move in together. And one character will actually attend college.

Those are just a few of the storylines ahead on season four of 90210, which kicks off on September 13. What else can viewers expect from this CW hit? The appearance of Brandy in a major arc, numerous musical acts and, oh yeah, the whacking of watermelon on a stick.

Huh? Click on the following season premiere pictures to see what we mean:

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