Drew Barrymore and Christina Aguilera know that their past might occasionally come up when they try to discipline their kids.

The two bonded over a talk about child-rearing when Aguilera stopped by Barrymore’s talk show on Tuesday.

“My daughter wants to wear a crop top and I’ll say ‘No,’” Barrymore told Aguilera. “And she’ll go, ‘You were on the cover of Playboy.’”

“I love that she said that though,” Aguilera said, laughing. The singer then shared a long-ago clothing choice that her kids may one day use against her.

“Well, I knew it was coming the day I wore chaps,” the singer quipped, referencing her iconic “Dirrty” era, before saying she experiences the same clothing woes as Barrymore. “You know, my daughter wants to wear a crop top too, and I’m like, ‘Can we just pull it down?’”

Aguilera said that she tells her daughter that certain people out there “have good intentions and bad intentions.”

“I don’t want to scare her, in one way, and be terrified of the world and that everybody’s a bad person because they’re not,” the “Voice” coach shared. She said she wanted her daughter to have a “strong sense of self” and “be very empowered.”

“Even when you take it back to chaps or even you on Playboy, we were expressing ourselves,” Aguilera said, adding “It was empowering. We didn’t do it for someone else.”

Aguilera has a 16-year-old son, named Max, with her former husband, Jordan Bartman. She also shares a 9-year-old daughter, named Summer Rain, with her fiancé, Matthew Rutler.

Barrymore has two daughters, Olive, 11, and Frankie, 9, whom she shares with ex-husband Will Kopelman.