Players for the Florida Gulf Coast Eagles celebrate after they won 78-68 against the Georgetown Hoyas during2013 NCAA Men's Basketball Tournament.
Every few years in the NCAA tournament it happens.
A 15th-seeded team pours gasoline on brackets all over the nation and lights a match with a compelling upset against a top-ranked team.
Duke, Arizona, Georgetown and Syracuse are among the NCAA powers to fall to unknown teams that immediately household names.
But which of the 15th-seeded teams had the greatest upset? Use our poll to rank them for yourself.