Corey was born in Tupelo, MS and raised in Louisville, MS. His parents are Todd and Angela McCullough. He has one younger sister Erin, and one younger brother, Kirby.

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Graduating from Louisville High School in 2016, Corey was a multi-sport athlete playing football, soccer, and baseball. He played on the Louisville High School 2013 3A Football State Championship team.

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After high school, Corey went to Alcorn State University and played football starting at kicker, punter, and kickoff specialist all for 3 years. He finished his playing career at Alcorn as the school-record holder for the “Most Field Goals in a Career” (45) as well as “Most Field Goals in a Season” (17 FG's, 2x), along with a 2x All-Conference Selection and 2x SWAC Champion title. Corey also played in the HBCU Spirit of America Senior Game.

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Corey earned his bachelor’s degree in Health and Physical Education graduating in December 2019. He was the Special Teams Coordinator and Running Backs Coach at Louisville High School (MS) from 2020-2021, winning the 4A State Championship.

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Corey currently works as the Specialists Coach at Grayson High School in Georgia and is the Social Media Manager for National Kicking Rankings (NKR).