WATCH: Cardi B Attacks Nicki Minaj

Cardi B lost her shoe after throwing it at Nicki Minaj's head over the weekend. Apparently, the melee went down Friday night at a New York Fashion Week party – and you can see some of it HERE.

The new beef allegedly started over some not so nice comments that Minaj had "liked" about Cardi’s mothering skills. Then, when Cardi and Nicki both showed up at the Harper's Bazaar's bash, all hell broke loose – and the shoe went flying.

Since then, Cardi's declared war. She posted on Instagram directly to Nicki, "I've let a lot of s*** slide! I let you sneak diss me, I let you lie on me ... But when you mention my child, you choose to like comments about me as a mother, make comments about my abilities to take care of my daughter is when all bets are f***in off!!"

• For what it’s worth, Cardi B may have a lump on her head, but she won’t be facing criminal charges. Sources tell TMZ that Minaj isn’t filing a report with the cops because no one on her team was injured.
• As for the party, Cardi got escorted out by security - with one shoe on her foot.