While the late Diane Keaton was most notably known for her many iconic roles, the famed actress found other, lesser known ways of expressing her creativity. In addition to acting, Keaton - who died on Saturday, October 11, at age 79 - was also a director, sitting behind the camera for music videos, movies and television shows The Family Stone star famously - and perhaps surprisingly - even starred in Justin Bieber's music video for his 2021 hit, "Ghost.