Jon Bon Jovi is headed for NBC's 30 Rock. TV Guide magazine reports that the New Jersey rocker will make a guest appearance in 30 Rock's Valentine's Day episode, which shoots in New York City this week. Tina Fey, who plays Liz Lemon, spilled the news at the recent SAG Awards. The episode will find Fey reuniting with her ex-boyfriends and lovers, and one of them happens to be Bon Jovi.