Hot country newcomer Walker Hayes announced via his Facebook page that he and wife Laney are expecting their fourth child.

"Laney plus Walker equals baby number four on the way," the 'Pants' singer revealed Monday, January 17.

There's no word yet as to when the new bundle of joy is due to arrive, joining the couple's three other children. The new Hayes tot is the latest in a baby boom at the singer's label, Capitol Records. His labelmate Dierks Bentley welcomed a baby girl on Christmas Day, followed by the birth of Keith Urban's new baby girl on December 28.

Walker made his splash debut on the country charts with his infectiously suggestive debut single, 'Pants,' in September 2010. The boyishly handsome, Alabama native says the tongue-in-cheek tune is a tribute to his wife.

"I wrote that totally for Laney," Walker says. "She is so much better than me at so many things -- for example, parenting our kids -- and I will bow down and cower to whatever she says. She does wear the pants and I'm OK with that, as long as I can take them off her!"

The title of Walker's debut album, 'Reason to Rhyme,' is also the singer's tribute to his adored better half. "I get off on finding new ways to tell my wife 'I love you,'" he confesses.

Go behind the scenes to see the making of Walker's 'Pants' video below.%VIRTUAL-globalVideoEmbed-{"videoIds":"517721354","width":"476","height":"357"}%

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