On Saturday, supermodel Arlenis Sosa proved she's beautiful on the inside and out when she volunteered at the 5th Annual New Alternatives for Children Kids Olympics at New York City's Chelsea Piers. At the event, over six hundred children with severe disabilities enjoyed activities like relay racing, rock climbing, soccer and gymnastics. Sosa worked with the New Yorkers for Children's Youth Advisory Board to help run the face painting booth. "I'm so thrilled to have been part of such a great cause," said the 21 year-old Lancome spokesmodel. "It brought joy to my heart to see the happiness this event brought the children."