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It looks like Mariah Carey is spicing things up in her marriage. 

On Tuesday, the singer took to Twitter with a selfie showing off some major cleavage in a black lace bra and unbuttoned men's shirt.  The photo was a gift to her husband Nick Cannon, in celebration of his 33rd birthday. 

She captioned the photo "my baby I'm waiting on youuuu." 

Mariah and Nick have been married since 2008 and share two-year-old twins Monroe and Moroccan.  The couple hasn't been shy about sharing their love publicly. 

Earlier this year, Nick made headlines for revealing that the singer often puts on her own music while they make love.  

Mariah is busy putting the finishing touches on her new album, rumored to be titled The Art Of Letting Go. She announced that she would be delaying its release back in June.