The country singer's wife of 16 years, Rhonda, filed papers in Tennessee on Tuesday, citing "irreconcilable differences."

Rhonda is asking for primary custody of the couple's three daughters – MacKenzie, Brianna and Trinity – and for Trace to pay child support, alimony and all her legal fees.

Trace has battled alcohol addiction in the past, and spent time in rehab in January after getting into an argument with a Trace Adkins impersonator on a cruise ship.

He left treatment in February to fly to Louisiana when his father, Aaron, became ill, but his dad died a few days later.