Now, the ex-Talk host will get to share her side of the scandal on HBO's Real Time with Bill Maher on Friday, April 16.
As OK! previously reported, Osbourne's downfall began when she defended Piers Morgan's freedom of speech after he doubted claims made by Meghan Markle during her and Prince Harry's CBS tell-all with Oprah Winfrey.
After Underwood questioned how Osbourne could defend someone who "uttered" something "racist," on the Wednesday, March 10, episode of The Talk, Osbourne had a melt down on-air followed by another after the episode — during which she accused CBS of blindsiding her with the Morgan segment.
Shortly after the heated discussion, CBS launched an internal investigation into The Talk episode, putting the show on hiatus. As the scandal continued to worsen, racist allegations were made against the 68-year-old.
And on March 26, CBS announced that Osbourne "decided" to leave The Talk, which is the same claim Underwood made on the returning episode of the talk show on Monday, April 12.
While recalling Osbourne and Underwood's tense exchange, Welteroth said she felt Osbourne "was not listening and went off the rails into disrespect." She then praised Underwood for her "strength" and "will power" to be able to maintain her composure while talking to Osbourne.
And now with Osbourne gone, OK! learned that the remaining hosts are battling it out for Osbourne's title of "boss" on the show.
"Sharon was the star of the show, on camera and behind the scenes. She was the leader and the lady that had the final say," the OK! source explained. "Everyone knew their role, which was basically to shut up when Sharon was talking."
In particular, Underwood and Welteroth are butting heads on who deserves the prominent title more, according to the insider.
"Sheryl, who is now the show's longest-serving host, thinks she should be the boss. However, Elaine thinks she’s the voice of the new generation and wants to be the lead host," the source continued, adding: "It is unclear who is going to win, but what is clear is that anyone who thinks the drama is over now that Sharon is out is very much mistaken.”