The US Army has launched a review after musician Kid Rock shared a video showing two military helicopters hovering outside his Tennessee home.

The Army said the AH-64 Apaches were conducting a training route past the Nashville area, where the country rock artist's hilltop estate is located.

"An administrative review is underway to assess the mission and verify compliance with regulations and airspace requirements," Army spokesman Maj Montrell Russell said. "Appropriate action will be taken if any violations are found."

Kid Rock, a vocal supporter of President Donald Trump, posted the footage to social media on Saturday of himself gesturing to the aircraft from his outdoor pool.

In the footage caption, the Born Free singer aimed a profanity at California Governor Gavin Newsom, a Democrat, who has feuded with Trump, a Republican.