Katherine Webb (the chick that was ogled during the BCS championship game by Brent Musburger) has signed a deal to star in a new reality competition show ... which requires her to spend A LOT of time in a bathing suit.  The hot girlfriend of Alabama QB A.J. McCarron -- will be a contestant on the upcoming ABC show "Celebrity Diving." Her cast members include Detroit Lions badboy Ndamukong ( in-DOM-ə-kin ) Soo, Kareem Abdul-Jabbar, Nicole Eggert, Kendra Wilkinson, Louie Anderson, Drake Bell, Chuy from the E! Network, and Keshia Knight Pulliam.