Luke Bryan may be one of country's top solo acts ... the couple — now the parents of two boys — will celebrate 15 years of marriage. "Our household's crazy," the 45-year-old superstar says ...

Luke Bryan and wife Caroline have "got a grip" on ... "We know we've done our best in life and love and marriage, raising kids and helping with my sister and her husband's children.

Luke Bryan just released his new album ... Bryan then gave out the secret recipe to keeping the marriage fresh. “Caroline and ...