SauteePan- Yes they can. If you are hired to work for a company they will usually stipulate that there are certain peak times in which employees are required to pitch in a help and as a result they will receive overtime pay.
A perfect example is any one working in a retail environment in the fourth quarter of the year. This is the busiest season for retailers and many employees are working extended hours beyond their traditional forty hours a week.
Most states are at will states meaning that a company can fire an employee for any reason, so if an employee does not comply with working overtime hours then the employee might very well be terminated due to non compliance.
The hours of work and overtime are set on a schedule. Anything beyond the normal forty hours is given time and a half of hourly wages. I think that there are a lot of men at work puttin in overtime hours especially in the retail industry during the Christmas holidays.
Most companies earn anywhere from fifty to seventy five percent of their revenue during this time period so they need all hands on deck.