Michelle Obama and some of the most influential women in the country – powerful women entertainers, activists, and business executives – are joining forces for a June 14 White House summit tackling gender-equality issues under the banner “Today we’ll change tomorrow.” “We are the United State of women,” the first lady says in a star-studded video announcing the summit. “We stand stronger when we stand together.” Joining Obama for the launch video are Meryl Streep, Tina Fey, Oprah Winfrey, Kerry Washington, designer and fashion executive Tory Burch, Planned Parenthood president Cecile Richards, satiric comic Jessica Williams, Christy Turlington Burns, PepsiCo CEO Indra Nooyi and more.