Demi Lovato will guest on an upcoming episode of 'Grey's Anatomy.' The Disney teen sensation broke the news yesterday on Twitter, saying, "I'm so thrilled to announce that this week I'm shooting Grey's Anatomy!!!!!!!! :D AHHH!!!!" Further details on Demi's guest spot have yet to be revealed, so keep checking Twitter. [PEOPLE]

More casting news after the jump.

Judy Greer ('Miss Guided') will take another stab at TV stardom in the Fox comedy pilot 'Tax Man.' Greer will join David Krumholtz in the series, set at an IRS office in Fresno, California. The project will re-team Greer with 'Arrested Development's' Ron Howard, who is executive producing the pilot with Brian Grazer and David Nevins. Brent Forrester ('The Office') will pen the pilot. [Hollywood Reporter]

More casting news after the jump.

It's almost Valentine's Day, and for CBS, that means that love is in the air. And not just any kind of love, mind you, but the best kind of all: 'True Love.'

Yes, according to the Hollywood Reporter, work continues apace on the pilot for CBS's new sitcom 'True Love.' The latest victim to fall under Cupid's spell? 'Friday Night Lights' actress Minka Kelly.

Kelly, of course, was one of the breakout stars of 'Friday Night Lights,' but thanks to the nature of that show, her character had to be written out due to the pesky reality of high school graduation. Since then, Kelly has also appeared in the CW pilot 'Body Politic,' which the network surprisingly decided to pass on despite strong buzz in the media.

In this difficult world we live in, some small comforts remain timeless and ineffable, such as puppies, apple pie and, of course, true love. But would you want to watch a TV show about them?

Well, CBS hopes so, because according to Variety they've given the green light to 'True Love,' which, if nothing else, will help dispel any rumors that the network is heartless. The series, which is being produced for the network by Sony, "revolves around a quartet of twentysomething friends looking for romance" in New York City.

(S02E09) The fresh takes on classic Science Fiction plots has to be one of my favorite things about Eureka. Invisibility is an absolute classic. Solving the invisible man problem is a bit glossed over, but everything else was baked to simmering SciFi perfection.