BILLBOARD'S LONGEST NUMBER ONES INVESTIGATION: PART 2 — SONNY SAYS PART 2: DO NUMBER ONES LAST LONGER ONCE THEY REACH THE TOP? An analysis of Longest Number Ones of All Time READING TIME: 20 MINUTES INTRODUCTION 1.1 Background on the Project and Billboard Methodology In Part 1 of this three part series, the three titles which held the longest number sonnysa...