Oh, those fabulous 15s.

Did they leave your bracket in shambles? Join the club.

And sit back and enjoy this year. Because years from now, they still might be talking about Friday the 16th — the day the 15s rose up and produced one of the greatest collection of upsets in NCAA men's basketball tournament history.

First, Norfolk State knocked off Missouri, 86-84. A few hours later, another 15-seed, Lehigh, beat Duke, 75-70.

And just for good measure 13th-seeded Ohio beat No. 4 Michigan, 65-60, making Friday the first time that three teams seeded 13th or higher all won on the same day in the Big Dance.

"We messed up some brackets! We messed up some brackets!" Kyle O'Quinn shouted as he led Norfolk State players to the locker room after scoring 26 points and grabbing 14 rebounds in the upset of Missouri. "We even messed up my bracket."

But for each memorable upset winner, there is a stunned victim.

"The game has taken me to incredible highs and the game will take you to incredible lows," Duke coach Mike Krzyzewski said in a televised interview after the Blue Devils' loss to Lehigh. "Today is one of those incredible lows."