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Gabby Douglas

USA's Gabrielle Douglas performs on the uneven bars during the women's team final at the Artistic Gymnastics World Championships in Tokyo, Japan, Tuesday, Oct. 11, 2011. (AP Photo/Bullit Marquez)

Youngest Olympians of 2012

Teenage athletes from around the globe have punched their ticket for

London 2012. Ranging from ages 15 to 19, these young adults qualified to

participate on behalf of their nations at the Summer Olympics. -- By

Paul Rosales