Mary J Blige ascended charts in the early '90s with her multiplatinum debut, What's The 411? In the 15 years since, the Bronx native has endured as a commanding superstar at the intersection of hip-hop and R&B by transforming the triumphs and trials of her personal life into unflinchingly emotional stories of survival. We've got some good news. Whether you missed out on tickets or went along and wanna relive the night, you can watch this performance live or on-demand. Check it out on iPhone, iPad or iPod touch, iTunes on your computer or in stunning HD with Apple TV. Visit www.itunes.com/festival for more information. Join the conversation using #itunesfestival.