This mailable postcard represents the spirit behind the song, complete with this historical description on the back: Originally titled “Later Alligator”, the song, based on the 12-bar blues chord structure was written by Louisiana songwriter Robert Charles Guidry and first recorded by him under his professional name “Bobby Charles” in 1955. -Heavy Cardstock Paper with an Eggshell finish -Measures 4'' x 6'' -Blank space to write a special message on the back