Super Bowl commercials, colloquially known as Super Bowl ads, are high-profile television commercials featured in the U.S. television broadcast of the Super Bowl, the championship game of the National Football League (NFL). Super Bowl commercials have become a cultural phenomenon of their own alongside the game itself, as many viewers only watch the game to see the commercials. Many Super Bowl advertisements have become well known because of their cinematographic quality, unpredictability, surreal humor, and use of special effects. The use of celebrity cameos has also been common in Super Bowl ads. Some commercials airing during, or proposed to air during the game, have also attracted controversy due to the nature of their content.