March Madness fanatics - Sweet 16
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Wisconsin fans take pictures with their phones prior to a regional semifinal NCAA college basketball tournament game between Baylor and Wisconsin, Thursday, March 27, 2014, in Anaheim, Calif. (AP Photo/Jae C. Hong)
- 2/10
Louisville fans cheer before an NCAA Midwest Regional semifinal college basketball tournament game against the Kentucky Friday, March 28, 2014, in Indianapolis. (AP Photo/David J. Phillip)
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A Louisville fan cheers before an NCAA Midwest Regional semifinal college basketball tournament game against the Kentucky Friday, March 28, 2014, in Indianapolis. (AP Photo/David J. Phillip)
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A Kentucky fan cheers before an NCAA Midwest Regional semifinal college basketball tournament game against the Louisville Friday, March 28, 2014, in Indianapolis. (AP Photo/David J. Phillip)
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A Michigan fan gets ready for the start of an NCAA Midwest Regional semifinal college basketball tournament game against the Tennessee Friday, March 28, 2014, in Indianapolis. (AP Photo/David J. Phillip)
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A Wisconsin band member watches warm up's prior to a regional semifinal NCAA college basketball tournament game between Baylor and Wisconsin,Thursday, March 27, 2014, in Anaheim, Calif. (AP Photo/Jae C. Hong)
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A Dayton fan holds a sign during the first half in a regional semifinal game against Stanford at the NCAA college basketball tournament, Thursday, March 27, 2014, in Memphis, Tenn. (AP Photo/Mark Humphrey)
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Wisconsin fans take pictures with their phones prior to a NCAA men's college basketball tournament regional semifinal between Baylor and Wisconsin, Thursday, March 27, 2014, in Anaheim, Calif. (AP Photo/Jae C. Hong)
- 9/10
A Dayton fan cheers before the first half in a regional semifinal game against Stanford at the NCAA college basketball tournament, Thursday, March 27, 2014, in Memphis, Tenn. (AP Photo/Mark Humphrey)
- 10/10
Arizona fans hold a cut out of former coach Lute Olsen, left, and San Diego State fans hold a cut out of head coach Sean Miller prior to a regional semifinal NCAA college basketball tournament game, Thursday, March 27, 2014, in Anaheim, Calif. (AP Photo/Mark J. Terrill)
The NCAA tournament brings out some of the most passionate spectators in sports. Catch photos of these die-hard fanatics. Who do you think has the most school spirit?