Celebrity Celebrity Moms Carrie Underwood Welcomes a Baby Boy—Find Out His Name By Rita Kokshanian Rita Kokshanian Rita Kokshanian is a Los Angeles-based writer and editor who covers celebrity, fashion, beauty, and lifestyle. She was previously an Assistant Editor for InStyle and is currently the Senior Copywriter at The Grind. InStyle's editorial guidelines Published on March 3, 2015 @ 10:50AM Pin Share Tweet Email Photo: Rick Diamond/Getty Images Congratulations to Carrie Underwood and Mike Fisher—the duo welcomed their first child, a son named Isaiah Michael Fisher, on Feb. 27. The new mom shared the news this morning on her Instagram, posting an adorable photo of baby Isaiah's hand. "Tiny hands and tiny feet ... God has blessed us with an amazing gift! Isaiah Michael Fisher – born on February 27. Welcome to the world, sweet angel!" she captioned the photo. PHOTOS: Carrie Underwood's Most Stylish Looks Ever Underwood's baby announcement is fitting since the country singer turned fitness wear designer—who impressed us again and again throughout her pregnancy with her unexpected maternity choices—also announced her pregnancy via Instagram. Back in September, she posted a photo of herself with her two dogs, Penny and Ace, each wearing adorable shirts that read, "I'm going to be a big sister," and "I'm going to be a big brother," respectively. Aw! Congratulations to the growing family. PHOTOS: Chic Celebrity Maternity Style