Michelle Obama will be in good company when she takes the stage for her SXSW Music keynote on Wednesday. Missy Elliott, Diane Warren and Sophia Bush will all be featured in the panel, with Queen Latifah moderating. In a release on Monday, the festival said will be about "finding one's passion and acting on it," and will focus on the First Lady's work with Let Girls Learn, which aims to empower young women through education.