need song name and lyrics!

I heard a song one time (it was not on the radio). I'm pretty sure akon sings it and I can only remember some lyrics.

Let me know if you can help me.

"I used to be the knucklehead on the block wit a pocket full of rocks and my nine glock cocked.........always hittin up the mall and best believe a ***** was ballin.........."

it might be locked up by akon