Lady Gaga, the high priestess of pop, is stepping up her advocacy efforts and her public denunciation of the military's Don't Ask, Don't Tell policy. On Monday, Gaga will speak at an event in Maine organized by the Service Members Legal Defense Network, the 4the14k rally. (The rally's name refers to the 14,000 men and women discharged from the military under the DADT policy). "Meet me in Portland, Maine 2moro, 9/20 to help repeal #DADT. I'm holding a Rally + speaking live in Deering Oaks Park," Gaga tweeted. In a video she released online Friday, Gaga explained her position on the law and clarified her role as an activist and pop star. "I am here to be a voice for my generation, not the generation of the senators who are voting, but for the youth of this country, the generation that is affected by this law and whose children will be affected,” she said.