by Mike Krumboltz When it comes to Lady Gaga , we've learned to expect the unexpected. But we doubt anybody could have predicted that the pop superstar would show up at Sunday night's VMAs with two guests on each arm. Who in the heck were they? When asked about her guests on the red carpet, Lady Gaga (real name: Stefani Germanotta ) explained. She told MTV that the foursome, who were all in military uniforms, are her friends "and they are with SLDN.org ,