I remember he mentioned about this work somewhere... then, googled. OK. This is what he did during his high school time, according to this:
His voice changed since then, or this is hip-hop version of his voice. He should record more and share more with us! Well, it does not have to be hip-pop, but he can maybe read some kind of poem. My request = a sentence or two from Old Possum's Book of Practical cats by T.S. Eliot. Why? Because I love cats as much as I love Sung.