LOUISVILLE, Ky. (WHAS 11)--Kicking off the show will be 2017's Thundernator, Brandenburg resident Mary Hager.

She hasn't been to a thunder in 20 years and will provide the Thunder countdown and zero ignition to activate the launch system sequence in the Command Center at the Galt House.

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Randomly selected through a Kentucky Lottery contest, she will also receive other Kentucky Derby Festival VIP experiences including a hot air balloon ride, seats on Millionaires Row during Celebrity Day at the Downs, and a ride in the Pegasus Parade.