Oh what a night!

A New York college basketball fan hit a half-court shot and then moments later, her boyfriend got down on one knee to propose.

Erin Tobin nailed the half-court heave during a recent Siena College basketball game, which won her a $500 gift card.

Next thing she knew, her boyfriend, Steven Duckett, emerged from a Dunkin' Donuts mascot costume with the ring, and Tobin said yes!

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The newly engaged couple appeared on "Happening Now" with Jenna Lee Wednesday to relive the events.

Tobin said she had no idea the proposal was coming. She also said she only practiced the half-court shot twice -- both pretty bad misses -- before draining the shot when it counted.

Duckett said he reached out to Siena about the proposal and the school linked him up with Dunkin' Donuts for the half-court shot promotion.

Watch the full interview above, and check out the original video below.

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