Your family always has karaoke at family functions. this is known as a:

Your family always has karaoke at family functions. This is known as a "ritual".

Ritual, the execution of formal acts recommended by convention or by sacerdotal announcement. Ritual is a particular, discernible method of conduct showed by every single known society. It is in this way conceivable to see custom as a method for characterizing or depicting people.

United states v.  nixon, 418  u.s.  683 (1974),  was  a landmark  united states supreme court case  that resulted in a unanimous  decision  against president richard  nixon, ordering him to deliver tape recordings  and  other subpoenaed materials to a  federal  district  court.