Barack Obama, Joe Biden, Jill Biden, Michelle Obama, George W. Bush, Laura Bush, Hillary Clinton, Bill Clinton, Malia Obama, Sasha Obama, Oprah Winfrey, Tom Hanks, Kamala Harris, Stephen Colbert, David Letterman, Gavin Newsom, Stephen Spielberg, Nancy Pelosi, Tems, Christina Aguilera, Marc Anthony, Jennifer Hudson, Bono seen in Chicago for Dedication Ceremony at the Obama Presidential Center