Rosie O'Donnell is never one to hold back. In an Aug. 19 Instagram post, she called out fellow TV icon Jay Leno for a mean-spirited 2009 segment from "The Tonight Show with Jay Leno," which was revisited in the new Netflix docuseries " Fit for TV: The Reality of the Biggest Loser ."

The former View cohost and Rosie O'Donnell Show star shared an incendiary message to Leno Tuesday on social media, as she made her way through Netflix 's buzzy Biggest Loser docuseries that chronicles various controversies surrounding the weight-loss-themed reality competition show.

Rosie O'Donnell has called out Jay Leno following the release of Netflix's docuseries Fit for TV: The Reality of The Biggest Loser, which delves into the controversies surrounding the weight-loss reality show.