American Idol

Depending on your clientele and the personality of your group, a modified version of American Idol can be a big hit.  Change the name to personalize Idol to your facility.  Using a karaoke machine, invite participants to sing for the panel of judges.  Schedule at least a few contestants in advance to get the ball rolling.  Make the panel of judges special: an administrator, a family member, and another staff, etc.  The panel should have a good sense of humor and make funny, positive comments about the "performances".  If possible, hand out ballots with contestants numbered so there can be an official winner, or leave it to the judges to decide.  Again, make it fun - the best doesn't have to the winner!