The hourlong "Dora's Big Birthday Adventure" is set to premiere Aug. 15 at 8 p.m. ET/PT. It follows Dora and Boots on a whirlwind journey through Magic Storybook Land and guest stars Rosie Perez as La Bruja, John Leguizamo as the Flying Monkeys and Hector Elizondo as the Wishing Wizzle.
After the program, the cable television network said it will air a specially commissioned "Dora" documentary, featuring appearances by Anderson Cooper, Elisabeth Hasselbeck, Salma Hayek Pinault, Shakira, Soledad O'Brien and Sherri Shepherd.
"For the past 10 years, 'Dora the Explorer' has been a pioneer -- a symbol of empowerment, diversity and education," Brown Johnson, president of animation at Nickelodeon, said in a statement Tuesday. "She has captured the hearts of millions of fans around the world and will continue to inspire and entertain preschoolers for many years to come."