Everybody knows that one of the best parts about the Super Bowl is the commercials.

This year should be no different -- Willie Nelson and Tim McGraw both have ads scheduled to run during the event.

Willie's commercial is for H&R Block, and word has it that he'll be spoofing himself and his now-legendary troubles with the IRS.

Tim's commercial for Anheuser-Bush takes on a more serious note. He is helping the company promote their efforts to fight drunk driving by playing the designated driver who makes sure his friends get home safely.

"In the past twenty years, drunk driving fatalities have fallen 37%," Tim explains, "And I think ads like this can draw attention to the importance of designated drivers."