Grammy Award-winning singer Christina Aguilera performed today at the grand opening of the Obama Presidential Center. MS NOW: My Source for News, Opinion, and the World. » Subscribe to MS NOW: https://www.youtube.com/@msnow » Subscribe to MS NOW’s We the People Newsletter for exclusive content from your favorite MS NOW anchors. Sign up now for free at https://ms.now/joinus MS NOW is the go-to destination for domestic and international breaking news, and best-in-class opinion journalism. For