Cindy Crawford made appearances in Madison

Supermodel Cindy Crawford made appearances in Madison, Wisconsin, to raise awareness of pediatric cancer in the U.S.

Crawford's brother succumbed to the disease 33 years ago and died at a young age - he was 3 years old - , so Crawford has made childhood leukemia a focal point of her charity work, donating proceeds of her calendars to medical research.

Crawford's brother, Jeff, was a patient at the University of Wisconsin Children's Hospital. The beauty admits she is still affected by his tragic passing to this day.

The University of Wisconsin says Crawford has been contributing time and money to the UW Pediatric Oncology program for nearly 20 years. During the visit of the Supermodel to the Wisconsin hospital, Crawford said

"When I was able to start raising money and awareness, I was able to choose where do I want to give back in my life, and this just was the first place that popped into my head."

In 1995, Forbes magazine ranked Crawford as the most highly paid model in the world. Also Crawford was named one of the 50 Most Beautiful People by People magazine.