Oh baby! Carrie Underwood is expecting her second child with husband Mike Fisher. Shortly after revealing her second pregnancy, the country singer posted a backstage photo from the Grand Ole Opry, with her adorable baby bump on display. And that's not the only glimpse we've gotten of her growing belly. In addition to posting sweet snaps on Instagram, she's also shown off her baby bump on the red carpet. During her pregnancy announcement video, Carrie said she, husband Mike Fisher, and their 3-year-old son, Isaiah, are "over the moon excited" to welcome their new addition. We can't wait to see even more exciting peeks into their journey as they become a family of four!