Janice Min, who recently stepped down as the editor of Us Weekly, is celebrating her 40th birthday today. Martha Nelson, the woman who oversees People, is turning 57. Weatherman Sam Champion is 48. Sebastian Stan of Gossip Girl is turning 26. Danny Bonaduce is 50. Author and screenwriter Tom Perrotta is turning 48. Agnes Gund, the former president of the Museum of Modern Art, is 71. Former U.S. Surgeon General Joycelyn Elders is turning 76. And ex-Cuban president Fidel Castro turns 83 today.