Super Bowl Sunday is the only day in which the commercials are just as important as what's on TV. After all, companies drop 2 or 3 million dollars on a 30 second spot just so it will appear during the big game. Often the funniest and most memorable ads of the year, advertisers pull out the big guns with celebrities, physical gags and crude humor to catch the attention of millions. Here, we've collected some of the funniest Superbowl commercials over the last 20 years, from the Budweiser frogs, to the boy who sucks himself into a coke bottle, to that ridiculous Cash 4 Gold ad featuring MC Hammer. When you're done, check out the funniest super bowl halftime shows!