Credit: Mark Von Holden/ Getty Images Photo: Model Alek Wek on ANTM

The guest judge on America's Next Top Model's episode airing on March 2, 2011  is one of the most famous supermodels in all the land. After Alek Wek was discovered at London market in 1995, the Sudanese refugee made a splash when she appeared in a music video for Tina Turner. Alek's transition to the fashion world made headlines (particularly her 1997 Elle cover) because of her striking, unique beauty. Oprah Winfrey once said to her, "If you'd been on the cover of a magazine when I was growing up, I would have had a different concept of who I was."

Alek has walked runways for Calvin Klein, Donna Karan, and Chanel, among others, and appeared in ad campaigns for Issey Miyake, Victoria’s Secret, and Clinique. Now 33 years old, Alek also started a line of handbags called Wek 1933.

The model/designer has also turned her attention to humanitarian work, giving time to World Vision, UNICEF, and the U.S. Committee for Refugees’ Advisory Council.  She released her autobiography in 2007 called Alek: From Sudanese Refugee to International Supermodel. Her attitude about beauty resonates:  "I have no problem with whatever the next big look is. Just don't try and tell me that only one look is beautiful."

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