Original: The second single was '' Get Buck '' , produced by Polow da Don , and the third single , '' U Ai n't Goin ' Nowhere '' produced by Dr. Dre , was released on May 18 , 2007 .
Simplified: The second single was '' Get Buck '' , produced by Polow Da Don . The third single , '' U Ai n't Goin ' Nowhere '' , was released on May 18 2007 .