Sunning and stunning! Carrie Underwood teased her 2 million Instagram followers with a rare bikini-selfie on Tuesday, May 5 — but only from the shoulders up. 

In the pic, the "Cowboy Casanova" singer, 32, lounges on a yellow and white striped towel, her blonde hair tousled behind her and a pair of oversized, movie-star-glam sunglasses covering her eyes. The straps of her halter-style bathing suit are visible at the bottom of the frame, but the rest of her (no doubt awesome) bikini body is left to the imagination.

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"Vacation selfie," she captioned the pic, adding the hashtag "#IKnowImLame."

The season four American Idol winner has been keeping a low profile in recent months, ever since she welcomed her first child with husband Mike Fisher. Their son, Isaiah Michael Fisher, was born on Feb. 27.

"My wife is a trouper," hockey player Fisher told The Tennessean of Underwood after she gave birth. "It's been awesome. It's been really cool."

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