The 39-year-old singer has been doing the rounds to promote her new memoir "Open Book", and appeared on Andy Cohen's "Radio Andy" on Thursday, February 6, 2020 to discuss the tome.
During the interview, Andy asked Jessica if she'd heard his 2013 interview with Nick, during which he asked him what the best part was of not having Joe Simpson as a father-in-law anymore.
"The best thing about not having Joe Simpson as a father-in-law anymore is I don't have to play grab-a*s under the table on Easter Sunday," Nick, who split from Jessica in 2005 after three years of marriage, said at the time.
Reflecting on the interview, Jessica said, "That was low. He was just trying to... he was just bitter, you know, and he was just trying to take a dig."
Asked if she'd heard it herself, the mother-of-three replied that she'd "heard about it." But when Andy asked if she'd reached out to Nick afterwards, Jessica answered "Oh gosh, no!" adding that she was "very p**sed."
Joe and Jessica's mother Tina split in 2012, amid rumours that he is gay. However, Jessica insisted she doesn't discuss Joe's sexuality in "Open Book", adding, "It's not my story to tell."