TVLine Items: Idol Alum Gets Smash'd, No X for Lindsay Lohan, and Other TV News to Know

Songstress-turned-actress Katherine McPhee is the latest celeb to join NBC’s Glee-esque musical pilot, Smash.

The American Idol alum joins the already cast Debra Messing as “a beautiful struggling actress who goes to all lengths to book the role of Marilyn Monroe in the musical,” says Deadline.

Wondering what else is happening in TV today? Well…

• Despite rumors to the contrary — and certainly none that we ever heard! — a Fox spokesperson tells AP that Lindsay Lohan will not be joining Simon Cowell’s X Factor this fall.

•First Lady Michelle Obama will appear on the Cartoon Network’s upcoming Hall of Game Awards, per USA Today. Obama is set to pop up in a pretaped segment to present the “Let’s Move U.S. Healthier Schools Challenge” award.

• IFC has renewed its new Fred Armisen-helmed hit Portlandia for a 10-episode second season. Season 2 of the short-based comedy series is slated to premiere in January 2012.

Which TVLine Items have you talking today? Let us know in the comments!