Angelina Jolie doesn’t normally have to fight for the spotlight, but her bizarre behavior at the Oscars that involved her flaunting her emaciated figure in a high-slitted gown is a cry for attention, an expert tells RadarOnline.com.

“People often flaunt their bodies in need of attention,” psychotherapist Jessica Aronson, who has not treated the star, told RadarOnline.com in an exclusive interview. “Her dress, like many others such as Jennifer Lopez’s, was so exposing and in my clinical opinion a deeper desire for attention."

Former plus size model and anorexia survivor Crystal Renn shocked people with her startling slim down earlier this week, and now an eating disorder expert is weighing in on her unhealthy look, RadarOnline.com can exclusively reveal.

Dressed in a skintight scarlet Zac Posen gown, Renn was a shadow of her former self when she walked the red carpet at the New York premiere of W.E. on Monday night, prompting fears she has fallen back into bad habits.

"It is common for people with eating disorders to have periods of relapse. This can be caused by numerous factors but most common are emotional issues," psychotherapist Jessica Aronson, who has not worked with the star, told RadarOnline.com in an exclusive interview.

Demi Moore was already looking startling thin before husband Ashton Kutcher's latest cheating scandal, and now the actress' weight has plunged to a frightening new low, according to an expert.

As RadarOnline.com previously reported, the 48-year-old Ghost star was a shadow of her former self when she appeared at the New York premiere of her new thriller Margin Call on Monday.

PHOTOS: Demi Moore Looks Frightening Thin On Red Carpet

"She has lost another 10 pounds in a short period of time," nutritionist Majid Ali, who as not treated the star, told RadarOnline.com in an exclusive interview.

Many years ago the Duchess of Windsor, Wallis Simpson, was famously quoted as saying that “you can never be too rich or too thin,” but had the American born socialite lived to see the latest crop of Hollywood starlets, including Lindsay Lohan, Tori Spelling and Angelina Jolie, would she have retracted that statement?

PHOTOS: Are These Stars Too Skinny For Hollywood?

RadarOnline.com investigates the truth behind the fat-free figures of the famous and fabulous with the help of New York City Eating Disorder Specialist Jessica Aronson, who explains the frightening truths behind celebrity’s obsession to look good.