Popularized by my favorite Idol contender of 2010 Didi Benami, Terrified, written by Kara DioGuardi and Jason Reeves, is on Katharine McPhee's current album Unbroken, but features vocals by Jason Reeves. The season 5 Idol runner up has known Zach, star of American TV series Chuck, for some time now but didn't know he sang (I didn't know this either and I've been a Chuck fan since the first season). Anyway, here is their duet. Oh, and watch out for the VIDEO on May 7th! I'm quite sure you've all heard this beautiful song.