Queen Elizabeth II made her first appearance at Wimbledon in 33 years Thursday -- much to the joy of a giddy Serena Williams, who showed off her curtsy. Wearing a white dress with a blue coat and hat, the 84-year-old queen braved scorching temperatures as she greeted onlookers and met former champions such as Billie Jean King and Martina Navratilova before meeting the tennis tournament's top... More...