PREVIEW

The billionaire media mogul kicked off her pal's celebration two weeks early by covertly bringing together the CBS Mornings co-host's friends and family for a bash at Italian restaurant Ci Siamo in Manhattan. "My bestie of 50 years is turning 70 so we gathered everyone that loved her to celebrate. Hard thing to surprise her, O the stories we have made up, the lies we have told to keep this a secret," Winfrey captioned a video of the big reveal on Instagram.