Sorry, ladies. Lady Antebellum singer Charles Kelley is a taken man. The 27-year-old country crooner proposed to his girlfriend of two years, Nashville publicist Cassie McConnell, on Christmas morning.

"Everyone is so happy for them, as they are so in love," a friend of the couple tells Us magazine. "It was only a matter of time."

There's no word yet on a wedding date. Lady A, Grammy nominees this year for Best New Artist, are set to hit the road this summer with Keith Urban.

Engagement Bling

    Josh Duhamel and Fergie Engaged in December 2007

    Kevin Mazur, - Bill McCay,

    Reality show personalities Heidi Montag and husband Spencer Pratt attend the Cedars-Sinai 4th Annual "Road To A Cure" gala on December 2, 2008 in Los Angeles, California.

    Vince Bucci,Getty Images

    Katharine McPhee and Nick Cokas Married February of 2008 in Beverly Hills. Kellie Pickler and Mandisa were among the 305 guests on hand for the nuptials.

    John Shearer/WireImage, Getty - David Livingston, Getty

    Beyonce Knowles and Jay-Z Married in April of 2008 at a small ceremony in New York City. Attendees included Coldplay's Chris Martin and his wife, Gwyneth Paltrow. Her ring is reportedly 18 carats and cost $5 million.

    Dave Allocca,

    Sara Evans and Jay Barker Married in May 2008 in Franklin, TN. She wore a Vera Wang dress and the guests ate southern fried chicken, country-style pole beans, biscuits and macaroni and cheese.

    Rick Diamond, WireImage

    Actress Jennifer Hudson attends An Evening of Stars with a tribute to Patti LaBelle at the Kodak Theatre on September 13, 2008 in Hollywood, CA, California.

    Leon Bennett/WireImage

    Musician Natasha Bedingfield attends the Calvin Klein 40th anniversary at the High Line on September 7, 2008 in New York City.

    Steve Mack, FilmMagic

    Melanie Brown and Stephen Belafonte Married on June 6, 2007 by Reverend Matie Stapleton at the Drive-thru Special Memory Chapel in Las Vegas, which cost $59.

    Jesse Grant, - Jordan Strauss,

    Nicole Kidman and Keith Urban Married in June 2006. Special guests included Russell Crowe, Hugh Jackman, Naomi Watts and Rupert Murdoch. Guests were asked to donate to the Sydney Children's Hospital instead of give gifts to the bride and groom.

    Dave Hogan,Getty Images - SGranitz,

    Josh Kelley and Katherine Heigl Married in December 2007. Special guests to their Park City, Utah wedding included Grey's Anatomy costars T.R. Knight, Sandra Oh, and Kate Walsh. Katharine forgot her passport for the Mexican honeymoon and the couple had to go back to LA to get it.

    Jeffrey Mayer, - Jeffrey Mayer,

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