Yes, Jay-Z is a man of his word. Except, it seems, when he isn't. In 2002, the rapper declared that his next CD, The Black Album, would also be his last. His future lay not in the beats but in the boardroom. And that ambition became a reality when, in December 2004, he was announced as the new president and CEO of Def Jam Recordings. How to explain, then, the news that this fall Jay-Z will release a new CD, Kingdom Come? ''It was the worst retirement, maybe, in history,'' he admits. And then he launches into an impromptu a cappella preview of the title track, which was inspired by a 1996 comic in which Superman comes out of retirement to save the world. The lyrics that effortlessly roll off his tongue may help explain his return: ''Take off the blazer/Loosen up the tie/Step inside the booth/Superman is alive!''

So without further ado, let us welcome, and celebrate, the return of Jay-Z, a.k.a. Jigga, a.k.a. Hova. He is, arguably, the most powerful man in the music business — but without his music, well, he's just Clark Kent.

Labels: Jay Z