Julia Roberts Posts First Instagram Message

J ulia Roberts is giving the world of Instagram a spin! The "Homecoming" actress joined the platform on Tuesday, making her the latest A-list social media holdout to take the digital plunge.For her first post, the pretty woman kept things simple, sitting cross-legged in the grass and cracking a smile. "Hello," she captioned the shot -- then added a sunny emoji. The photo has already won Julia some online fans.