We continue now with the latest on country music star trace adkins and the baffling brawl that allegedly broke out on a cruise ship and here's the twist. T it was with his own impersonator and linsey... See More
We continue now with the latest on country music star trace adkins and the baffling brawl that allegedly broke out on a cruise ship and here's the twist. T it was with his own impersonator and linsey davis is here with the latest. Linsey, please help me understand. His own impersonator. Trace adkins has a list of tour dates coming up but this morning those performances may in be jeopardy. We learn the country star entered rehab much the reported circumstances surrounding his insobriety are rather unusual ♪ you're doing all you can ♪ Reporter: This morning country music superstar trace adkins has checked into rehab for alcohol abuse following a bizarre incident at sea. Way ntszed to invite you personally to the best country cruise ever. Reporter: The grammy nominee was headlining a country music themed cruise for norwegian cruise lines alongside other big acts like wynonna judd and montgomery gentry when he reportedly got into a fight with this man. Separated at birth. Reporter: No, you're not seeing double, the man seen here meets adkins in 2007 is a trace adkins impersonator. Tmz reporting the 6'6" country star was in the ship's bar when he heard the impersonator singing karaoke to one of his songs, the fight reportedly breaking out soon after. ♪ Ready ♪ Reporter: Ironically, the rough and ready singer tweeted this on the first day of the cruise "up here in my suite overlooking the pools. Behave yourselves." 52-year-old adkins not just country music star royalty, also appeared in movies like "the lincoln lawyer" alongside matthew McConaughey. He even won the celebrity apprentice all-stars. Trace adkins. Reporter: But with all his success, he's always been candid about his struggles with alcohol including another rehab stint back in 2002. The star had been sober for 12 years prior to this incident. His rep telling abc news as he faces these issues head on, we ask that his family's privacy will be respected. This morning we know the cruise which has planned stops in jamaica, grand cayman and mexico will continue on without adkins. We reached out to norwegian cruise lines but have not heard back.
This transcript has been automatically generated and may not be 100% accurate.