Not one for thematic range roving or genre bending, Jadakiss sticks fiercely to guns and ego on his latest. The one time he does diverge, he reveals a surprisingly thoughtful side: ''Why'' is a set of near-earnest rhetorical questions about everything from Kobe Bryant to 9/11. ''Kiss,'' which includes a cameo by Eminem, doesn't astound, but Jada flexes impressive muscles as he grinds his heels into a well-trodden dance floor.

