Grimes Shares Rare Photo of Son, 17 Months, Helping to Draw a Mural in His Nursery

Grimes has a little artist on her hands.

On Wednesday, the 33-year-old musician shared a rare photo of her son X AE A-Xii, 17 months, to her Instagram Story, featuring the little one scribbling on the door of his nursery.

"We had a rough day but we made up for it by starting a mural in x's room," Grimes writes on the slide.

The unfinished mural above X's crib includes drawings of a castle with a dragon as well as a cartoon woman standing on top of the light switch in the room.

Never miss a story — sign up for PEOPLE's free daily newsletter to stay up-to-date on the best of what PEOPLE has to offer, from juicy celebrity news to compelling human interest stories.

Last month, Grimes, whose full name is Claire Elise Boucher, told Vogue in a video chronicling her 2021 Met Gala prep that her son with Elon Musk calls her by her first name.

"I think having a baby was a big rebirth for me, like artistically," she said as she prepared for fashion's biggest night. "Being a mother feels weird to say. For some reason, I don't identify with that word."

"Which is also really weird because X, he says 'Claire,' but he doesn't say 'mama.' Which is so... I'm like, 'How are you...?' " she continued. "Like, maybe he can sense my distaste for the word 'mother.' "

Grimes added, "I don't even know why I have a distaste for [the word] because I respect … I just, I don't, I can't identify with it, weirdly."

The "Art Angels" singer welcomed her son in May 2020. X Æ A-Xii is Grimes' first baby, while Musk, 50, is also dad to twins Xavier and Griffin, 17, and triplets Kai, Saxon, and Damian, 15. His first son, Nevada, died of SIDS in 2002 at 10 weeks old.