BonoThe countdown is on until Super Bowl Sunday. While the final teams haven't won their places yet, we know the Black Eyed Peas will be performing at halftime. And isn't that the most important part of the game anyway?

Whether you're into the game or not, the halftime performances often steal the show. It's always worth a watch to see the performers, what they wear, what they do within the confines of acceptable Super Bowl behavior, and how they impress.

So as February 6 approaches, let's look back at some of the most memorable Super Bowl moments:

Janet Jackson and Justin Timberlake, 2004

Arguably THE most memorable halftime performance due to Nipplegate -- Jackson's "wardrobe malfunction" in which her nipple was briefly exposed, though it was wearing a shield.

Paul McCartney, 2005

McCartney was chosen to follow the Jackson fiasco, and didn't disappoint. There were no nipples, and his performance of "Hey Jude" with 70,000-plus fans singing along was amazing.

Michael Jackson, 1993

He sang "Jam," "Billie Jean," "Black or White," and "Heal the World," and blew the crowd away. He really set the stage for spectacular shows from there on out.

U2, 2002

It was the first Super Bowl after the tragic events of 9/11, and U2's tribute in which the names of the victims were shown was chilling.

Prince, 2007

Well, it was Prince, what do you expect? Not only were the purple skies as he sang "Purple Rain" memorable, but there was that little matter of his guitar shadow looking more than a little phallic.

What's your favorite Super Bowl halftime show of all time?

Image via YouTube