Papa John's sponsors Thunder Over Louisville March 22, 2018. Louisville, KY. – Ordering Papa John’s pizza will help support this year’s Thunder Over Louisville, now just one month away. Papa John’s and Kentucky Derby Festival officials announced this morning that Papa John’s is the new title sponsor of the Thunder Funder program. The program helps raise funds for Thunder Over Louisville – the Derby Festival’s Opening Ceremonies set for April 21. Beginning today, participating Papa John’s locations will donate $1.00 of every Thunder Fireworks pizza purchased to help support Thunder. The Thunder Fireworks pizza must be ordered online at PapaJohns.com using the online promo code THUNDERPIZZA.