Jennifer Lopez just delivered a moving performance in Washington, D.C.During the inauguration of President Joe Biden and Vice President Kamala Harris on Wednesday, the 51-year-old singer took the podium to sing one of the United States' most famous folk songs, «This Land Is Your Land,» throwing in a «Let's Get Loud» moment.Other Inauguration Day performers included Lady Gaga and Garth Brooks, with a poetry reading by Amanda Gorman. The theme of the event was «America United,» which the