WASHINGTON, DC - APRIL 07: Melissa Harris-Perry, Sophia Nelson, Ethel Kessler, Sonia Sanchez, Eleanor Traylor, Nikki Giovanni, Michelle Obama, Megan J. Brennan, Oprah Winfrey and Ross Rossin view the unveiling of the Maya Angelou Forever Stamp at Warner Theatre on April 7, 2015 in Washington, DC. (Photo by Leigh Vogel/WireImage)