Examples of Singing: "California Boy," "All My Life"
Even though "California Boy" was released as the Based God's first foray into rock, are any of Lil B's "rap" songs really, truly rap? Call it what you want: stream of consciousness, cloud rap, a tortured genius drowsily talking over instrumentals—B's in a category all his own.
Conclusion: It's impossible to explain any of Lil B's artistic choices. He's a God.