The singer has a hoppy time performing for the First Family at the White House Easter Egg Roll. Plus: Ashlee Simpson-Wentz, Matthew McConaughey and more

  • BUNNY BUSINESS photo | Fergie

Credit: UPI/Roger Wollenberg/Landov

Published: Monday Apr 13, 2009 | 05:00 PM EDT

BUNNY BUSINESS

Fergie hops to the mic to sing the national anthem – with the Easter Bunny by her side! – Monday at the White House Easter Egg Roll. The singer also performed several of her hits, including "Big Girls Don't Cry," for the First Family. "It was a special moment in time as I got to see Michelle, Malia and Sasha dancing and singing with me to my songs," Fergie told PEOPLE.