Edge has served as the Chairman and CEO of Clarkson's label, RCA Records, since 2011 -- the year that Clarkson released her fifth studio album, Stronger. The American Idol winner has been with the label through her entire career, releasing her first studio effort, Thankful, in 2003.
In a recent radio interview with Australia's KIIS FM, Clarkson didn't mince words when talking about her less-than-pleasant experience working with the producer -- real name: Lukasz Gottwald -- on two of her biggest hits: 2004's "Since U Been Gone" and 2009's "My Life Would Suck Without You."
"The last time I worked with him, I only worked with him because literally I got blackmailed by my label," the singer alleged in the interview. "It was a really hard time for me. They were like, 'We will not put your album out if you don't do this.'"
"He's not a good person to me," she continued. "We've clashed."
The remarks come amid a high profile lawsuit brought against Dr. Luke by Kesha, who has accused the 42-year-old of drugging and raping her over a decade ago and consistently abusing her both physically and emotionally over the years. Dr. Luke has denied all wrongdoing.
"Her situation is very different from mine, apparently. He never did anything like that with me. I don't know that part," Clarkson said. "I can't really say anything other than that… I wasn't there. I don't know specifically what happened in their situation. Obviously, I wasn't in the room."
"But I can remark on his character," she added. "Unfortunately, when you have that poor of character -- like, so many artists don't like you and don't like working with you -- that's not normal. I get along with everybody I work with, I love everyone I work with, and he's just not a good guy for me."
Dr. Luke's team had no comment to ET about Clarkson's allegations. However, a source close to the producer told ET that he and producer Max Martin were asked to work with Clarkson.
Kesha lost a preliminary injunction last month that would have let her get out of her contract with Sony Music and Dr. Luke, but has been receiving overwhelming support from her peers such as Adele, Taylor Swift, Lady Gaga and Zedd. Clarkson also showed support for the "We R Who We R" singer at the time, retweeting a post that called the judge's ruling "some legit bulls**t."
"Trying 2 not say anything since I can't say anything nice about a person," Clarkson added to the tweet. "So this is me not talking about Dr. Luke."
Trying 2 not say anything since I can't say anything nice about a person... so this is me not talking about Dr. Luke https://t.co/lLhtUHbmgG