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Sorry ladies: Country star Jake Owen is officially off the market!

The 30-year-old crooner had a big surprise for his girlfriend Lacey Buchanan when he took the stage at a charity performance in his Vero Beach, Fla., hometown Saturday: A marriage proposal.

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Getting down on one knee when singing "Don't Think I Can't Love You," Owen asked Buchanan to be his wife, Taste of Country reports, but the proposal was so spontaneous that he didn't even have a ring.

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"I'm a happy man. Life is complete," Owen tweeted after Buchanan said she'd be his wife.

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The couple met on the set of Owen's video for "Eight Second Ride." Buchanan also appeared in his video for "Barefoot Blue Jean Night."

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