Did You Ever Get a Song Stuck In Your Head?

We were cleaning out some of our closets today and both of us had this song stuck in our heads. I actually heard it on my iTunes recently and was singing it and Shane started singing it and we couldn't stop to the point where it was driving us crazy. Now I have infected you (if you dare to listen).  We saw Raul Esparza sing this on Broadway in Company.  We also own the DVD of the show.  We love it.  I just wish this song would leave my head now.