She kept her look simple in a leather coat, but on Sunday night, the Empire
star attended the Vanity Fair
Oscars after party sans-Tanaka in a green gown with a thigh-high slit and a plunging neckline.
The pair are back stateside after a recent trip to Dubai where they took in the sights together and Mimi performed for the Jazz Festival.
Carey also got a chance to take her twins, Monroe and Moroccan
, around the exotic city. The kids got to meet penguins and pose for pics with their famous mom.