Music Trivia: What song spent the most time as #1 on the Billboard Hot 100?

Only one song has the honor of having been #1 for the longest amount of consecutive weeks on the Billboard Hot 100?  This list, considered by the music industry to be one of the most important to any group's career, is constantly reviewed by experts, ratio & TV stations to determine air play - its importance cannot be understated.  So, off of Pocket Trivia: Music Trivia - What song spent the most time as #1 on the Billboard Hot 100? Was it:

• One Sweet Day (Mariah Carey & Boyz II Men)
• Thriller (Michael Jackson)
• Poker Face (Lady GaGa)
• We Belong Together (Mariah Carey)

The answer here is actually One Sweet Day (surprised me too).  The Hot 100 wasn't around for Thriller.  Poker Face spent eight weeks at #1 and then nine weeks at #2, while We Belong Together is one of six songs to spent fourteen weeks at #1.  But, its One Sweet Day by Mariah and Boyz II Men that spent a whopping and record-breaking sixteen weeks at #1.