If any label defined the sound of East Coast hip-hop in the ’90s, it was Sean “Puffy” Combs’ Bad Boy Records. Mase’s super-catchy, funked-up smash “Feel So Good” exudes equal measures of grit and glitz, while The Notorious B.I.G.’s biggest, baddest raps (“Hypnotize,” “Big Poppa”) shine with timeless beats and his brilliant, Brooklyn-bred flow. But it’s Biggie’s all-star collab “Mo Money Mo Problems”—powered by Kelly Price’s unforgettable, belt-it-out hook—that is the jewel in Bad Boy’s crown.