Vladimir Tarasenko and the St. Louis Blues surprised Arianna Dougan, a young fan undergoing cancer treatment, with a surprise of a lifetime for her 11th birthday.

Tarasenko secured the winning bid for a trip for two on the Blues' charter to attend a two-game road trip through Arizona and Colorado in an auction at the team's Casino Night last week.

Cameras were rolling when he presented the trip as a gift to Arianna.

After she was given the gift, and Tarasenko had announced that it was for her birthday, the Blues' locker room broke into a special rendition of "Happy Birthday."

Arianna was diagnosed with a childhood cancer called neuroblastoma at 3 years old. She has relapsed four times, but the treatment she's receiving now is working and her mom believes she's close to being cancer-free.

You can read more about Arianna on the team's official website.

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