The Roc Nation founder slammed the "Anaconda" rapper over her marriage to Kenneth Petty, a convicted sex offender.
As the 'America's Got Talent' Season 21 premiere is about to kick off, we take a look back at the full list of AGT winners by season.
Find Oprah Winfrey Latest News, Videos & Pictures on Oprah Winfrey and see latest updates, news, information from NDTV.COM. Explore more on Oprah Winfrey.
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