14. Lil Wayne "La La La" (2007)
Album: The Drought Is Over 2 (The Carter 3 Sessions)
Not to be mistaken for the David Banner-produced "La La" that actually did make Tha Carter III, "La La La" is a bouncy outtake. It finds Wayne in rare form, tender and endearing while backed by a playful refrain of children. Its omission from the album seems strange in hindsight-with the right push it might have been his "Hard Knock Life" instead of just an underground classic.