By A Mystery Man Writer
In the photo, Underwood is wearing a black jungle-printed top, with pink coral bottoms captioning the photo "Is it summer yet?"
Carrie Underwood Shows Off Her Abs in Bikini Selfie: 'Is It Summer Yet?
Carrie Underwood, 38, Took Her Washboard Abs Fishing In Bikini Pics
Carrie Underwood Shows Off Her Toned Abs In A Sexy Bikini: Pic – Hollywood Life
Carrie Underwood shows off abs in bikini selfie
Carrie Underwood, Page 2
Bikini Just Jared: Celebrity Gossip and Breaking Entertainment News, Page 42
Carrie Underwood sizzles in red string bikini during break from tour
Tristan Thompson reacts to Khloé Kardashian's new look
Carrie Underwood Flaunts Rock-Hard Abs In Zebra Swimsuit
Carrie Underwood, Page 3
Celebrity Selfies, Page 4