Favorite Team(s): Dallas Cowboys (NFL), Ottawa Senators (NHL), Nashville Predators (NHL)
Dated An Athlete?: Tony Romo (Quarterback, Dallas Cowboys), Mike Fisher (Center, Nashville Predators)
Honestly, who would argue with the idea that being a country star begets football fandom? Carrie Underwood is more evidence to the fact. The singer, who once dated Cowboys QB Tony Romo, attended multiple Cowboys games and performed during the team's Thanksgiving game halftime show in 2006. Fortunately, Underwood hasn't had to change her favorite NFL team after breaking up with Romo, she's married to NHL star Mike Fisher, a former Ottawa Senators player who's now with the Nashville Predators.