During the exchange, the 76-year-old pop sensation was asked by host Susanna Reid about her personal life, saying: “Your family has experienced tragedy, of course your cousin.”
However, the American star was not impressed and hit back: “We’re not going to discuss that, okay? That’s a bygone conclusion. We’re not discussing that.
She added that she wanted to talk about her children’s charity initiative, saying: “We’re here to discuss Dot Com.”
Taken aback, Susanna, 46, tried a different tack: “Well, quite right. I only wanted to mention because there has been a documentary.”
Again, the actress and singer hit back: “I’d rather – first of all, it’s a very personal thing and why would you guys want to continue to hurt me. Because that does hurt. Let’s just leave it there.”
“Well, I’m sorry that that hurts and I totally respect that,” Susanna told her, before getting cut off as Dionne told her: “Can we talk about Dot Com?”
Trying to make amends, Susanna told her: “Absolutely, right,” as co-star Ben Shephard added: “There was no intention [to hurt you].”
“Wonderful, thank you,” Dionne said bluntly as the interview continued and the focus switched.
Susanna was referring to Dionne’s cousin and late singer Whitney Houston, who died in 2012.
The official coroner’s report said that Whitney, 48, died after accidentally drowning in a bathtub while heart disease and cocaine were named as contributing factors.