Mariah Carey and Son Moroccan Rock Chipmunks Costumes in Belated Halloween Snaps: '7 Days Later'

Mariah Carey is a cool mom!

On Thursday, Nov. 7, the music legend shared a joint carousel post that featured snaps of her and 13-year-old son Moroccan dressed up for Halloween.

While Carey, 55, was dressed as Alvin from the 2007 movie Alvin and the Chipmunks, Moroccan — whom she shares with ex-husband Nick Cannon — portrayed the character Simon.

Sporting chipmunk ears and a red baseball cap with the capital letter “A,” the five-time Grammy winner paired the accessory with a matching hoodie that also featured a giant letter “A” for Alvin.

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.

Carey’s hair was kept in a long ponytail as it hung over one shoulder. Meanwhile, Moroccan accessorized with a bracelet, finger rings and a chain as he pulled a straight face for the camera and held up a peace sign.

The mother and son were joined by loved one who appeared to dress up as Theodore from Alvin and the Chipmunks as he wore a green hoodie with chipmunk ears, completing the iconic trio.

"Happy halloween!! - 7 days later and during its time ... Heh serrryyy ... 😅 🎄🎃,” the caption read on the "We Belong Together" singer's post, referring to her pivot to Christmas at exactly midnight Nov. 1.

In addition to Moroccan, Carey also shares his twin sister, Monroe, with ex Cannon, 44.

The PEOPLE Puzzler crossword is here! How quickly can you solve it? Play now!

Carey was also snapped wearing a black latex bodysuit and cat ears, while standing next to a ghost.

The “Fantasy” artist finished the latter look by styling her hair in voluminous curls.

Carey’s belated Halloween post comes after she declared it was time for the holiday season one day after the spooky holiday.

The star posted her annual "It's Time" video on Instagram, where she transformed from The Addams Family's Morticia Addams to herself in a Christmas dress.