Katharine McPhee, Rumer Willis to Star in New Comedy

Here's a pairing almost as strange as Brandon Davis and, well, any attractive female:

Katharine McPhee and Rumer Willis will be co-starring in an upcoming film, courtesy of Adam Sandler's Happy Madison productions.

In the as-yet-untitled comedy, the American Idol runner-up from a year ago and Willis will have to muster all their acting skills in order to play "sisters" in the "lamest sorority on campus," according to The Hollywood Reporter. Their distinctive characteristics?

McPhee will be a pregnant hippie and Willis a woman unwilling to remove an unnecessary back brace. Seems odd to us. But so did Ashton Kutcher ogling his step-daughter.

In addition to the Happy Madison project, both McPhee and Willis have other acting gigs lined up. Katharine has committed to indie dark-romantic-comedy The Last Caller, and Willis will join Mischa Barton and her Die Hard dad Bruce in dark comedy The Sophomore.

Of course, after her recent sexy photo shoot in Stuff magazine, fans don't care about future movies; they just wanna see Katharine McPhee nude. Sorry, folks, we don't have those pics right now.