Super Bowl Ads: What You Should Watch For

It's costing advertisers an average of $2 million, but to reach more than 140 million viewers, companies like Pepsi, Cadillac, Anheuser-Busch and even the White House, believe that a 30-second spot is worth it.

Some of the advertisements vying for viewers attention include:

Pepsi: Britney "Now and Then." Web viewers vote at Yahoo for three spots under consideration. Each borrow elements from a 90-second Pepsi commercial that will air earlier in the game and during its first quarter. All four ads in the campaign, "Now and Then," feature Spears appearing in mock Pepsi spots from the 1950s, 1960s, 1970s, 1980s and the present day. The ads also showcase a new "Joy of Pepsi" song, sung by Spears. For more about the commercial, click here.
Levi's: Levi's also gave online voters the ability to pick which of its three commercials aired during the Super Bowl. Viewers voted on levis.com. Here are the choices: "Crazy Legs": A youth gyrates as he walks down a Mexico City street in his "Flyweight" Levi's. His bizarre leg movements are real, but the straight upper body is a camera trick. (Probably the winner since Spike Jonze directed.) "Up and Down": A risque view of what young women go through to put their jeans on. "Bull": A young Levi's wearer unwillingly rides a mechanical bull.
Lipton Brisk Iced Tea: Danny DeVito is immortalized in a puppet in this commercial for iced tea. Al Roker appears as the newsman who wants to fire all of the Lipton puppets. Lipton is a Pepsi product.
Cadillac: It's the first time Led Zeppelin has ever sold one of its songs for commercial use. "Rock and Roll" is being used for Cadillac's "Break Through" campaign, to help sell its newest line of vehicles.
Anheuser-Busch: The beer maker who turned "Wassup?!" into a national catchphrase isn't saying what it will debut.
H&R Block: Joel and Ethan Coen ("Fargo," "The Big Lebowski") directed this commercial that features a re-recorded version of the Beatles' "Taxman" that pitches the tax preparer as the place to go for those bewildered by the new tax laws.
Quizno's Sandwich Shops: The same guy who created the "Where's The Beef?" campaign for Wendy's was behind this commercial, which shows a woman getting shot in the neck with a dart gun when she picks a competitor's sandwich.
White House Office of Drug Control Policy: Yes, you heard it right. The White House spent somewhere in the neighborhood of $3 million for two spots that send the clear message that purchasing illegal drugs helps to fund international terrorism.

Only four online companies, Monster.com, HotJobs.com, Yahoo and E*Trade, will be advertising on this year's Super Bowl, a large drop from the 17 online companies that spent millions on commercial spots in 2000.

Tobacco giant Philip Morris and anti-smoking campaigner the American Legacy Foundation will air commercials against smoking.

Fox said Thursday that it had sold out all available commercial time in Sunday's Super Bowl telecast at an average price of just under $2 million per 30-second ad, according to Newsday.

Fox spokesman Lou D'Ermilio said about 32 different sponsors bought the in-game Super Bowl ads.