The US Army is investigating after a helicopter was filmed performing a low-altitude manoeuvre outside the home of musician Kid Rock while he saluted.
The singer posted a video of the Apache attack helicopter hovering above his Nashville home while he saluted.
"This is a level of respect that s— for brains Governor of California will never know," he captioned the video on Instagram.
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"God Bless America and all those who have made the ultimate sacrifice to defend her."
Now the US Army has ordered an investigation as to why the Apache was flying so close to the singer's house.
"Fort Campbell leadership is aware of a video circulating on social media depicting AH-64 Apache helicopters operating in the vicinity of a private residence associated with Mr. Robert Ritchie (also known as 'Kid Rock')," a statement read.
"The command has initiated an investigation to review the circumstances surrounding this activity."
Kid Rock's Nashville home is styled after the White House.
The singer has become one of the few celebrities to still associate himself with Donald Trump.
An early progenitor of the country-rap genre, Kid Rock was particularly successful in the United States. Several of his albums also made the charts in Australia.
The Army is also being asked about why military helicopters flew low over a crowd of anti-Trump protesters that same day.
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The No Kings crowd in Nashville was buzzed by two Apaches. It is not apparent if it is the same helicopter in Kid Rock's video.
"Our pilots do regularly fly routes outside the Fort Campbell area," the Army spokesperson said.
"We just don't know if it was incidental or if it was deliberate."
Thousands of people took to the streets for the protest in Nashville, one of countless rallies across the US.
Organisers said at least eight million people took place in the demonstrations, largely protesting the Trump presidency.
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