Show: America's Next Top Model, UPN (now The CW)
Sure, a reality show in which eating is discouraged and television sets are banished seems like a natural recipe for crazy. However, none of the girls vying for the Top title soared quite as high above the rest as Lisa D’Amato, at least when it came to straight-up weirdness.

In addition to busting out into spontaneous conversation with a bush and taking one of the least sexy bubble baths wof all time, D'amato turned more heads than ever when she waltzed into a photo shoot sporting a diaper (it’s anyone guess if she actually utilized it). Our suspicions that this chick had to be on something were finally confirmed when she joined the third season of Celebrity Rehab.