"Cathy's Clown" was written by Don and Phil in 1960. Although the chords and lyrics of the song are pretty straight-forward and simple the fantastic harmony part on the chorus and the interesting rhythm played underneath really hooked me. Don and Phil had a real knack for writing very simple songs that had enough of a twist to make them very memorable. It's a really hard thing to do!
Here are the chords and lyrics. I'm still working out the vocal harmony part but will hopefully get that finished soon.