Mariah Carey is whipping herself back in shape -- and shared a photo today of her workout routine with 5 Jack Russell terriers!

The new mom, who gave birth to twins in April, posted the pic of her post-baby curves on her Twitter, writing "And They Call It Puppy Love" ... me & dem pups at it again!"

Earlier this week she also tweeted a shot of her back in the studio with Jermaine Dupri, so we might be hearing some new music soon!

Mimi isn't the only star sharing her personal photos with fans though -- check out the gallery above to see more TwiPics from stars like Demi Moore, Jessica Simpson, Kim Kardashian and more.

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