It’s a baby boy for Dee and Mac! Kaitlin Olson and Rob McElhenney, who play those respective characters on “It’s Always Sunny in Philadelphia,” welcomed son Leo Grey into the world yesterday. Baby Leo is the couple’s second child. (People)

Would you believe that: Katy Perry has a concert film coming out this summer, but she almost had a (small) screen part in last year’s hit “The Help. (Celebuzz)

Nicole Kidman is in talks to play Grace Kelly in the upcoming film “Grace of Monaco,” which follows Her Serene Highness as she scrambles behind the scenes to help rescue Monaco from unrest. (Variety)

Well here’s a reality show with a real cause. Veteran TV producers Mark Burnett and Dick Wolf are working with NBC on a show called “Stars Earn Stripes,” which features celebrities going through military-style training to raise money for charities dedicated to our armed forces. (Vulture)

Ken Jeong, of “The Hangover” films and “Community,” is joining the cast of Michael Bay’s upcoming “Pain and Gain.” (The Hollywood Reporter)