Here's Lady Gaga in a teenage sex advice video made before she was famous. The singer, real name Stefani Germanotta, filmed the clip when she was a teenager. In it, she plays a schoolgirl who is the victim of unwanted sexual attention at the hands of a male pupil. Gaga can be seen berating the boy after he tries to grab her. The video, aimed at educating teens about sexual harassment, is titled, 'Real People: Sexual Harassment - What You Can Do'. It is not clear how old Gaga, 24, whose sexy outfits have made her a global star, was when she made it. [CFP]