Everyone knows that Gwen Stefani is a beauty — and not the least of those, her boyfriend Blake Shelton. However, the singer is also known for her glamorous approach to her overall look, which always includes a perfectly coiffed 'do and flawless makeup.

Fans got a rare look at Stefani without her signature red lips and on-fleek brows, however, when she shared a photo this week on social media enjoying a relaxing day out on Lake Texoma with Shelton. In the photo, she's clearly bare-faced and not looking too worried about it, lounging with a drink between her legs while Shelton steers the boat.

She shared an additional photo showing off her pretty, unadorned face, with a caption for her beau: "Thank u for sharing your world."

Can we just remind everyone that Stefani will be 49 in October and is a mother of three children?

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As noted, of course, Shelton is a big fan of his girlfriend's ageless beauty. He told People last November that he adores how she looks without makeup: "[She] looks like she is 25 years old," he raved. "I don’t know what kind of genetics God gave her, but it’s literally unbelievable!”

Well, now we all are privy to what he has observed!

Stefani had spent the weekend in Shelton's native Oklahoma celebrating Father's Day and Shelton's June 18 birthday. She's set to launch her Las Vegas residency, Gwen Stefani: Just a Girl, at the Zappos Theater at Planet Hollywood Resort & Casino on June 27.

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Blake Shelton's Lakefront Estate Is Unreal Awesome! See Pics: