Kelly Osbourne and Melissa Rivers have a close-knit bond. Osbourne, 41, opened up about her friendship with Rivers, 58, while chatting with Hello! magazine in an article published on Monday, August 31. Osbourne shared that she connected with Melissa through her late mom, Joan Rivers. “The best working years of my life were working side by side with Joan Rivers,” Osbourne reflected of her and Joan’s show, Fashion Police. “I consider myself one of the luckiest people in the world. I was like her apprentice. … I learnt so much from her.” Osbourne continued, “Her daughter, Meli...