Jackie O confirms she threatened to quit her radio show because her pay was not the same as Kyle Sandilands'

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Henderson, spoke to news.com.au, and revealed that after 17 years of earning less than her co-host, she came to the conclusion that it was time to "finally take a stand."

"I've been in that situation over the years where you do get frustrated that the women aren't getting equal pay to men and they're seen somehow as less worthy," the 42-year-old said.

"You get to a point where you know when you're ready to walk and I think Lisa was obviously at that point as well."  

Nowadays, Jackie O is on par with Kyle's $20 million dollar five-year contract. 

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Meanwhile, Kyle had a giggle at Karl Stefanovic's salary as it did not compare to the amount he rakes in.