Apparently, karaoke is seen more in Vietnam than just a recreational thing.

According to Vietnamese newspaper, Tien Phong, 21 officials from Petrovietnam's financial arm PVFC are expected to write "self criticisms" for not participating in karaoke on Saturday night.

The karaoke was part of a contract signing ceremony.

A letter by the group of officials protesting the decision, said, "we all thought we had completed our company obligation and contributed to the success of the ceremony. We were only thinking of our family back in Hanoi, the kids and the wives waiting."

Even though eight department heads are facing suspensions for not participating, no action has taken place just yet.

An official with the company said, "No one has been laid off yet but they have to criticize themselves for not participating in collective activities."