The 59-year-old singer hinted her MDNA Skin company will partner with KKW Beauty in an Instagram post Monday after Kardashian attended her Oscars after-party Sunday.
Madonna shared a photo of herself and Kardashian posing within a paper backdrop. The singer wears a black lace bra, bustier and hot pants, with Kardashian in black turtleneck dress.
"Eating paper with KIm....,.,,,,, A foreshadowing of things to come #beauty #skincare #workinggirls #oscar #fun #mdnaskin #thermalwaters #holywater @jr @kimkardashian @mdnaskin," she captioned the picture.
Kardashian established KKW Beauty in June, while Madonna launched MDNA Skin company in the U.S. in September. Madonna discussed her skincare line with reporters at the launch event in New York.
"Skin was very important to me, and I always took care of my skin even at a young age," the star said, according to People.
"I got really tired and fed up of years and years of performing, being onstage, being filmed, being photographed and always having to grab one product and then another one, and another one," she explained. "And as soon as I liked a product it was discontinued."