As any Mariah Carey fan knows, the diva does not celebrate birthdays -- she prefers to call them "anniversaries."  Tuesday is Mariah's 42nd "anniversary," and she's got plenty to celebrate, including her twins, Monroe and Moroccan, getting her post-pregnancy body back, and new music that's supposedly coming down the pike.

Of course, Mariah can also celebrate her marriage to Nick Cannon, who seems to have put his health issues behind him for the moment..  He tweeted Tuesday, "Today is the day that my Angelic Soul Mate was born! Time to celebrate! Time to get festive! I LOOOOVE YOU."

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