It’s no Daydream… Mariah Carey has gone back to work…

The 42-year-old part-Venezuelan Grammy-winning singer—who recently performed a song she’d penned for President Barack Obama at a fundraising event in New York City—has returned to the studio to record songs for the first time since the birth of her twins Moroccan and Monroe in April 2011.

Carey announced her back-to-work status via Twitter, saying ”Summer 2012… Been in the lab, mixing up some concoctions for you, hope you like it!!

”Still working in the studio with friends o plenty! I love this new song 🙂 (sic)”

Carey last released an album, Merry Christmas II You in 2010. She most recently collaborated with Justin Bieber last December on the re-release of her holiday hit “All I Want For Christmas Is You.”

Meanwhile, Carey’s husband Nick Cannon previously revealed that the couple’s children were inspiring her songwriting.

”My beautiful wife is planning to make her return to the music scene after taking time off to focus on the pregnancy and the birth of our two wonderful babies, Moroccan and Monroe,” he wrote on his official website earlier this year. “’She’s rejuvenated and ready to start sharing some of the amazing new music she has been making in the studio! Our new family has definitely given her a great new source of inspiration and creativity. I’m so proud of her and can’t wait for her to release more phenomenal music!”

No word yet on when Carey, who has sold more than 200 million records worldwide, plans to release her 14th studio album.