Jennifer Lopez became J. Lo, Puff Daddy became P. Diddy, and Lil’ Bow Wow became, well, Bow Wow. Kanye West went in a different direction for his midlife name crisis: Martin Louis the King, Jr. The rapper pays tribute to his love of fashion—to say nothing of his outsized ego—by dedicating his new moniker to his favorite label, Louis Vuitton, for which West designed a pair of red sneakers that appeared in the luxury house’s fall show.