Oh, and Demi Moore... she's just fabulous in this movie, too. She plays "Jules." Remember? She had a raging drug and alcohol problem and a pink apartment with a huge picture of Billy Idol painted on the wall (which at the time was so cool.)
I found a picture of it on the internet:
Actually, a good group costume would be going as the group from St. Elmo's Fire.
Here's a nice video: