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Slam Dunk: A Teenage BBall Star Just Won A Prom Experience With Austin Mahone

See how she impressed in a T-shirt and gym shorts -- and earned a night to remember in a gown.

Practice doesn't just make perfect -- turns out, practice makes for one extraordinary prom experience.

Last week, as part of MTV's "Promposal Mania," we encouraged teenage fans of Austin Mahone who were still in search of perfect prom dates to invite the pop star via social media in a way that would catch his eye. The network promised one fan whose pitch really stood out a verifiable Austin Mahone prom experience, and last night, after carefully sorting through entries that included pizza-grams and a capella invitations, the pop star made his choice.

And the lucky high-schooler was...

Ashley (otherwise known as @TrustInAustin)! And, truthfully, we can't say we're surprised -- Ashley spent three hours perfecting a basketball-themed video promposal that found her sinking five shots (one ball for each character in "P-R-O-M-?") to impress Mahone. And impress, she certainly did.

Blown away by Ashley's ask? Watch Mahone accept her Promposal above, and be sure to tune in to MTV tonight at 8/7c to watch Fifth Harmony help one lucky Harmonizer orchestrate an EPIC promposal. Plus, get some foolproof prom advice as part of an extra-special "Girl Code" episode at 11/10c.