HAYDEN Panettiere has her priorities. At a recent Highline Ballroom show, the perky “Heroes” star was overheard talking to a friend about “Californication” star David Duchovny, who checked himself into rehab for sex addiction last year. A giggling Hayden told her friend, “Well, if I had to be addicted to something, it would be sex!” Panettiere is currently in talks to star opposite “Gossip Girl” star Chace Crawford in a remake of “Footloose.”