Checkout Before and after of Oprah Winfrey .

The OWN CEO Oprah Winfrey showcased her shrinking 5ft7in figure on the red carpet of the Queen Sugar premiere in Burbank on Monday.
It's unknown precisely how many pounds the 63-year-old media mogul has shed since buying $45M shares of Weight Watchers last October, but she did admit to dropping 26lbs back on January 26.

 - sporting glasses and a sleek ponytail - looked healthy and slim in a shoulder-baring LBD and peep-toe pumps.