MARIAH Carey let her hair down after the VMAs and was filmed during a chaotic after-party, slurring her words as she sang along to her hit song with Busta Rhymes.

The Fantasy hitmaker , 56, took to the stage at the annual awards ceremony on Sunday at the UBS Arena in Elmont, New York .

Mariah also picked up her first award and was honored by her peers.

After the ceremony, she headed to a private members' club in the city, The Twenty Two, for a bash with collaborator and longtime friend, rapper Busta Rhymes .

Exclusive footage obtained by The U.S. Sun shows Mariah holding the microphone as their hit, I Know What You Want, played to the cheering crowd.

Mimi slurred her words as she started singing the intro to fans, with Busta trying to help her out.

Partygoers standing behind

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