Bo Bice and Wife Expecting Third Son

By Sarah Michaud

Wednesday September 16, 2009 11:15 AM EDT

Bo Bice and wife Caroline

Randi Radcliff

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The baby American Idol alum Bo Bice and wife Caroline will welcome early next year is a third boy, his rep tells PEOPLE.

The season four runner-up’s new addition will join big brothers Caleb James, 13 months, and Aidan Michael, 4 this month.

PHOTO: Bo Shows Off First Son Aidan

"The rock triad will now be complete," Bice's rep jokes. "Watch out for the 'Brothers Bice' or ‘Bo Bice Brothers Band’ release later this year!"

Married for four years, Bice, 33, and his wife expect their new son on Jan. 31 – right around the time Idol returns for its ninth season.

• Reporting by ANNEMARIE CRUZ