Story highlights Laura Sumrall's reining routine went viral earlier this year

She performed to "Let it Go" from "Frozen" to become the World Freestyle Reining champion

The video has 17 million views

(CNN) Imagine figure skating on horseback. To the soundtrack from the Disney blockbuster "Frozen."

Seventeen million Facebook video views later Laura Sumrall still can't quite believe how her equestrian routine to the song "Let It Go" became a social media sensation earlier this year.

Sumrall was taking part in an event known as reining, which is designed to showcase the athleticism of ranch horses and sees competitors judged on their ability to negotiate a series of circles, spins and stops.

It was quite the performance from Sumrall as "Frozen" character Elsa as she won "the crown-jewel" of the annual FEI Reining schedule -- the $120,000 Kentucky Reining Cup -- to become the World Freestyle Reining champion.

After jettisoning her purple cape to reveal her full dazzling costume, Sumrall proceeded to enthrall the Kentucky Horse Park crowd in Lexington with a performance that combined both drama and superb equine handling of her horse Wimpys Top Model.

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