Diane Keaton continues to reign as our fearless style guru! In a video she posted to Instagram on Monday, June 22, the 74-year-old actress took viewers through her obsession with clothes from her younger years to now. See Sarah Jessica Parker’s Red Carpet Style Evolution “Even when I was young I was way into fashion,” she says at the start of the video, standing against a white brick wall wearing baggy jeans, a white button-down, a black scarf and a bowler hat.