Carrie Underwood gave her fans a sneak peek at her post-baby bikini body when she posted a summer-infused vacation selfie to Instagram on Tuesday. Carrie, who gave birth to son Isaiah in late February, captioned the photo, “Vacation selfie. “IKnowImLame.” While it’s not clear where the singer is relaxing ahead of her first Mother’s Day, she looks happy and healthy while lounging on what appears to be a white and yellow beach towel. And it’s no surprise that Carrie, who wed professional hockey player Mike Fischer in 2010, is already back in a bathing suit. The fit singer recently launched her own athletic-wear line, CALIA by Carrie Underwood.
