Jason Alexander’s latest starring role: A Nickelback music video. No, really. The “Seinfeld” actor plays a lovesick barista in the Canadian rock band’s video for “Trying Not To Love You,” the fifth single off their 2011 album “Here and Now.” In the video, Alexander’s character lusts after a hot blonde named “Gennifer (but with a … Continue reading See Jason Alexander in Nickelback's latest video