03/28/2011 09:54 pm ET | Updated May 28, 2011

Mariah Carey's Pregnant Painted Belly: Star Tweets 'Festiveness' (PHOTOS)

Mariah Carey will soon be a mom, but while she's got her pregnant belly, she's making sure to have fun with it.

The singer, who went to the hospital Friday night with contractions, tweeted a photo of a butterfly painted on her belly on Monday. Along with the photo, she wrote, "My attempt @ festiveness on 327! For ATLITL thank u + I♥U! Comin soon #dembabies! LYMA+thanx 4 making me happy:)."

Carey announced in October that she is pregnant; she'll be having twins, one boy and one girl.