Prom Dress ideas for this year?

I am looking for a really really unique and crazy prom dress. Though, I also do like classics, like the dress that Charlize Theron wore in the J'adore Dior commercial. I am into kinda crazy lady gaga-esque dresses, because I don't want anyone having the same dress as me. I am a little over 5'9" and am about 120 lbs. Last year, my dress was a bold print with cut out sides and a sequin back. Any ideas for this year?