Common celebrates 50 years of hip-hop, discusses his show "Silo" and shares about his efforts to bring the Democratic National Convention to his hometown of Chicago in 2024. ABC News chief medical correspondent and "GMA3: What You Need To Know" co-host Dr. Jennifer Ashton shares the inspiration behind her new magazine, "Better," and discusses her hair loss journey and why she chose to discuss it publicly. Learn more about your ad choices. Visit megaphone.fm/adchoices