According to Forbes, which just released its list of the highest-paid TV personalities, each of them pulled in the most money between June 2012 and June 2013.
In fact, Cowell and Stern tied for the top spot, both with estimated earnings of $95 million.
Not too far behind is another outspoken individual.
Conservative talk show host Glenn Beck, whose Internet program The Blaze has been a huge hit since it debuted in 2011, raked in an estimated $90 million to place third.
Meanwhile, Oprah Winfrey, who has topped this list in the past, fell to fourth place this time around with an estimated $77 million in earnings.
And speaking of Oprah, the man who got his start thanks to the media mogul, Dr. Phil, rounds out the top five with an estimated $72 million.
For the full list, go to Forbes.com.