New "Idol" Judge Catches McPheever

1/15/2009 5:30 AM PST BY TMZ STAFF
Here's new "American Idol" judge Kara DioGuardi (left) -- and Season 5 "Idol" wannabeen Katharine McPhee (right).

Kara and Kat

One of them wrote six songs on McPhee's debut album.

We're just sayin.'