EXCLUSIVE: Sorry Everyone, Sam Hunt Is Off the Market -- But Who's His Girlfriend?

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With his soulful singing and easy-on-the-eyes good looks, Sam Hunt makes fans swoon onstage and off. But unfortunately, he’s officially off the market!

Speculation ramped up a few weeks ago, when Hunt posted a photo of a mystery woman to his Instagram account. Now, a source confirms to ET that the country crooner is back with one of his exes.

The woman in the Instagram pic popped up again in a video Hunt posted a few days ago, though her face is still concealed. Fans on the Internet have speculated that she is Hunt’s ex, Hannah Lee Fowler, widely believed to be the inspiration for his debut studio album, Montevallo.

WATCH: Sam Hunt Admits to Facing Writer's Block on 'Montevallo' Follow-Up: 'My Lifestyle Has Really Changed'

While we’re sad that we no longer have a chance with Hunt, we can’t wait to see the “House Party” singer with his lady on his arm at his next big event!

Meanwhile, the latest single off Montevallo, "Make You Miss Me," lands at the top of the Billboard and the MediaBase country airplay charts this week, making it Hunt's fourth No. 1 radio hit from his debut album. According to Billboard, Hunt is the first solo male, and only the fourth artist overall, to peak its Country Airplay chart four times with singles from a debut album since the chart's January 1990 launch. 

Earlier this year, the country star opened up to ET’s Sophie Schillaci about taking his parents as his dates to the GRAMMY Awards.

"They're just those kinds of parents. They've been coming to everything that I've been doing since I was young," Hunt gushed, adding that the event holds special meaning for he and his manager, Brad Belanger. "[He] has been there from the beginning. He's like me, he was waiting tables about five years ago and I was doing odd jobs."

See more in the video below.

EXCLUSIVE: Sam Hunt Reveals His GRAMMYS Date and Prepping For His Duet with 'Phenomenal' Carrie Underwood