OKLAHOMA CITY, OK - MARCH 20: The Texas A&M Aggies bench celebrates teammates Anthony Collins #11 three pointer in the second half against the Northern Iowa Panthers during the second round of the 2016 NCAA Men's Basketball Tournament at Chesapeake Energy Arena on March 20, 2016 in Oklahoma City, Oklahoma. (Photo by Ronald Martinez/Getty Images)

Let's relive best moments from the first games of the NCAA Tournament

What an incredible four days!

The first four days of the 2016 NCAA Tournament came and went with seemingly more madness than we're used to. The weekend was chock full of upsets, incredible finishes and oh so many buzzer beaters. Let's take a look back at some of the best moments of the tournament so far.

No. 12 Yale upsets No. 5 Baylor: Yale became the first official Cinderella of the tournament with it's 79-75 win over 5th-seeded Baylor, who some people had advancing well into the tournament. Yale's run came to an end in the next round at the hands of Duke, but they gave us the very first upset of the tournament, which is always fun to watch.

Baylor's Taurean Prince gave a hilarious answer to a pretty pathetic question:

https://www.youtube.com/watch?v=P6A2ZgKV6n0

Two games ended in amazing buzzer-beating fashions on Friday night:

First there was this insane, No. 11 Northern Iowa half court shot that knocked out No. 6 Texas out of the buzzer. This one will never get old.

https://vine.co/v/idiULqhmFmq

Here's the full highlight in slow motion.

Then, moments after this happened, Cincinnattii nearly beat St. Joe's with this last-second layup that looked to be good, but it was called off after review because Cincy's Octavious Ellis didn't get it off in time.

https://vine.co/v/idix6TlbXVx

Northern Iowa gives up an 11-point lead in 44 seconds and loses to Texas A&M

This was a collapse of epic proportions. Texas A&M made an incredible 14-2 run in the last half-minute of the game to erase a 12-point deficit and tie things up to force overtime.

The craziest part is that before the comeback, UNI had virtually a 100% chance to win the game. The madness didn't stop there on late Sunday night, though.

No. 5 Wisconsin beats No. 2 Xavier on a buzzer-beater:

https://vine.co/v/idP2dqrWeKl

We love you, March Madness. See you on Thursday.