Oprah Winfrey and Rebel Wilson recently met for the very first time before discussing all things weight loss at a Weight Watchers event. After sharing a hug, the Australian actress, 44, asked Winfrey, 70, if she had the chance to read her memoir, Rebel Rising, which the former talk show host confirmed she already finished the tome. “Oh my god! It’s weird, because I feel like I know everything about you,” Wilson noted, to which the Daytime Emmy winner said, “So now I know a little bit about you!” On Instagram, the Pitch Perfect scene-stealer captioned a photo of them together, “When you meet yo…