Lauren Conrad's No Actress

(WireImage)

As she gears up for a fourth season of her MTV hit reality show The Hills, Lauren Conrad is also preparing to guest star on the ABC Family drama Greek.  She'll play herself on the show-- which is good, because Conrad insists she can't act.

"I tried [acting] when I first moved to L.A., " she tells ET in an interview set to air tonight.  "I took a couple of classes.  Awful.  Any opportunity you have to make fun of yourself I think is fun to do, but acting is an art and I don't think I have a talent there."

But back to The Hills-- Lauren says fans can look forward to (gasp!) much more drama in the fourth season. 

"There are a couple of reconciliations on the show, but things got worse before they got better," she reveals.

Conrad will attend her first Emmy Awards this year.  She's designing a dress for the women who hand out the Emmy statuettes--the first time a celebrity designer has done so in Emmy history.

Of what she plans to design, Lauren says, "They are not supposed to stand out, but you still want an element of your own design in there.  It will be a classic, beautiful look with my own twist."