Mariah Carey and Nick Cannon's 5-year-old son Moroccan reached a major milestone. He lost his very first tooth!

On Carey's Instagram, she posted a cute video of the toddler being extremely excited about the big moment. “My tooth fell out and I’m so excited and so happy!” he said to the camera, as Mimi's publicist, Stella, spoke to him. “I want to show my mom so bad.”

Carey's captioned the adorable video, "#rocstarr loses his first tooth!" Take a look at the clip below and try not to smile uncontrollably. If you're anything like us, you'll fail. 

#rocstarr loses his first tooth ! 🎉

A post shared by Mariah Carey (@mariahcarey) on

Moroccan has a fraternal twin sister, Monroe. Maybe her first tooth will be falling out soon, too!

Photo: Getty Images