Formed in the wake of the L.A. punk scene, the Red Hot Chili Peppers combined funk and punk with macho, sexed-up lyrics. The result was a high-octane sound that made the quintet alt-rock favorites in the Eighties, then superstars in the Nineties. But as the Chili Peppers aged, their songs became more laid-back and lyrical, and the band went from flesh-baring firecrackers to respected veterans.