Two babies and a wedding.
The hospital ceremony was conducted by Rev. Al Sharpton on Sunday.
"I also conducted the renewal of their vows and the blessing of the newborn twins. Mariah looks GREAT, and the babies are beautiful," wrote Sharpton on Twitter. "I am so moved by the sincere spiritual commitment of Mariah and Nick. They have not let success separate them from GOD. I am so proud."
The couple, who wed in April 2008 and have renewed their vows several times since, welcomed a baby girl first, who weighed 5 pounds, 3 ounces. The twin baby boy was born second, weighing 5 pounds, 6 ounces.
Names have not yet been released.