The beginning of a new year is a great time for music. The internet is laden with “Best Of” countdowns from the previous year, and the Grammys (while not always a consummate barometer for music quality) offers the most diverse popular music showcase of the year. Unfortunately, the new year is also a time to reflect on the shortcomings of some musicians. Particularly those musicians who may have once made great strides in the biz and don’t seem to know when to call it quits. Many a rap mogul (I’m looking at you, Snoop Dogg) were once visionaries in the nineties rap scene, only to succumb to the pitfalls of terrible movies (read: Soul Plane). Check out some artists that don’t know when to stop after the jump.