Madness is nearly upon us, but you still have time to fill out your perfect brackets for the men's and women's NCAA tournaments. First-round action will begin on Thursday for the men's tournament and Friday for the women's tournament.

But if you're a basketball fan, then you probably only care about one thing - March Madness. It's the NCAA Basketball Tournament, and if you can't take to the court, you can play along at home with the CBS Miami Bracket Challenge. So it's time to brush up on your college basketball knowledge.

Madness teams could pull off upsets in the first round? Here's eight bracket-buster predictions for Round of 64 NCAA Tournament bracket.