VIDEOS Lady GaGa gives back to the gay community this weekend with speech and John Lennon’s “Imagine” cover

Lady GaGa’s fan base is overwhelmingly gay, and the pop/disco/art princess has described herself as bisexual, so it was very appropriate for her to throw her star power behind the gay rights rally in D.C. this weekend. She began the weekend at the Human Rights Campaign’s National Dinner, with a low-key cover of John Lennon’s…