This is also not the singers first time in rehab, he tells about his past drug addiction in his song "You're Not My God," the Louisville Courier-Journal reported.
"I deeply regret the hurt this has caused Nicole and the ones that love and support me," Urban said in People magazine.
He was referring to his wife of four months, actress Nicole Kidman.
Urban also released a statement when he checked himself into the rehab center which said, "With the strength and unwavering support I am blessed to have from my wife, family and friends, I am determined and resolved to a positive outcome."
Urban has been nominated for CMA awards for entertainer of the year, male vocalist of the year, singer of the year and song of the year.