RaeLynn Is Engaged! Miranda Lambert Tour Mate and Blake Shelton Mentee Flashes Stunning Ring on Instagram

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For a boy... RaeLynn said 'Yes!'

The 21-year-old The Voice alum, who competed on Blake Shelton's team during season two, flashed a gorgeous new engagement ring on her Instagram account, revealing that she and boyfriend Josh Davis are officially engaged.

"MEET MY HANDSOME FIANCE," she captioned the adorable picture of the beaming couple. "Future Mr. and Mrs. Joshua Davis! Can't believe I get to marry my best friend."

WATCH: RaeLynn Shakes Off Anti-Feminism Criticism of 'God Made Girls' 

Later, she shared a photo collage of the moment Davis popped the question. "Of course I start dancing after he asks me to be his wife," she wrote.

RaeLynn broke into another dance party on Tuesday, showing off her stunning sparkler in a Dubsmash video set to Selena Gomez's "Good For You."

The "For a Boy" and "God Made Girls" singer has spent much of her summer touring and hanging with pal Miranda Lambert, sticking by her side through Lambert's shocking and sudden divorce from Shelton.

WATCH: RaeLynn Dishes on Miranda Lambert, Blake Shelton Friendship

The pair is currently out on the road for Lambert's Roadside Bars and Pink Guitars tour, but ETonline caught up with RaeLynn last year while she was opening for Lambert on her Certified Platinum trek. (The girls, along with fellow The Voice alum Gwen Sebastian, even got matching ink to celebrate their bond!)

"The coolest thing about her is just learning from her," RaeLynn told ETonline of Lambert. "One thing that I love about her is she takes time with her fans on-stage. It's almost like going to school every day because every day I learn something new from her."

RaeLynn has also stayed close with Shelton through the split, with Shelton sharing this snap in August alongside RaeLynn and her beau.

WATCH: Raelynn Dishes on the Date That Inspired Her to Write 'For a Boy' 

"I am just so lucky to have him in my life," RaeLynn previously said of Shelton. "He's taught me to always be myself when it comes to being in country music."

See more from our interview, in which she adorably gushed over her "For a Boy" inspiration, below!