The rapper took to her Instagram Story on Friday to share the news, however she admitted that the exciting milestone was somewhat bittersweet.
As it turns out, as baby Kulture was walking for the first time, Cardi was busy performing a concert in Nebraska. The "Please Me" artist revealed that she was at a fan meet and greet when she got a call from her younger sister, Hennessy Carolina, informing her of the exciting development.
"I'm doing a meet and greet, right? And Hennessy calls me with Kulture, and I'm like, 'I'm doing a meet and greet right now, I'ma call you guys right back,'" Cardi explained in a video.
She said that her husband, Migos rapper Offset, then called her, and she told him to call Hennessy because she was busy. According to Cardi, Offset called her sister, and she was on the phone with him when Kulture walked, which means he was able to witness the heartwarming moment.
"He always witnesses the good sh*t!" Cardi exclaimed, before lamenting how her little girl is growing up. "My baby starting to walk already. I can't take it. I can't take it!"
The cute clip came just a few days after Cardi and Offset threw a massive celebration in honor of their daughter's first birthday. Leading up to the bash, the proud parents repeatedly posted pics praising their precious progeny, with adorable Instagram posts expressing their love.
Check out the video below for more on Kulture's birthday, and to see some of Cardi's sweetest moments with her little girl.