Fifty of your favorite actors, athletes and CEOs have been keeping a HUGE secret for the past year – and they’re finally ready to spill the good news!In a mass act of generosity, stars like Gwyneth Paltrow, Serena Williams, Anna Kendrick and Ashton Kutcher are ensuring that American schoolchildren from cities important to them have the #BestSchoolDay ever by flash-funding classrooms in need.On Tuesday, the stars will be donating well over $12 million in total to DonorsChoose.org, a site where teachers post classroom project requests ranging from art supplies to new computers to robotics kits.Read the full story on People.com.