T was a hazard aboard Richard Marx’s flight to South Korea – but the “Right Here Waiting” singer was right t to help defuse a potentially dangerous situation.

Marx’s wife, model and former MTV VJ Daisy Fuentes, captured the scary scene Tuesday on her cellphone during a Korean Air flight and posted details on Instagram.

“On our flight from Hanoi to Seoul a guy sitting in the next row from us got crazy & started attacking the flight attendants & passengers,” Fuentes wrote.

Fuentes said the passenger’s behavior went on for four hours and the crew was unable to control him even after pulling out a Taser.

Fuentes’ photos showed Marx with his elbow to the back of the unidentified passenger, and as well as her Grammy-winning songwriter husband holding the rope.

Korean Air did not immediately respond to a request for comment from NBC News.