Doctors Without Borders announced today that Sandra Bullock donated $1 million towards the organization’s relief efforts following the devastating earthquake in Haiti. Bullock’s just the latest in a line of stars who’ve been opening their wallets to help. Earlier, model Gisele Bündchen donated $1.5 million to the Red Cross, Angelina Jolie and Brad Pitt gave $1 million to Doctors Without Borders, and Madonna gave $250,000 to Partners in Health, a Haitian health-care provider. George Clooney is set to host a telethon on Jan. 22 and Wyclef Jean, a native of Haiti, continues to raise money for relief.