“Livin’ La Vida Loca” — which translates to “Living the Crazy Life” — Ricky Martin is feeling a different kind of “loca” these days.Now 52, the Puerto Rican star — who became Latin pop’s hottest sex symbol after he released the first single from his English-language debut, “Ricky Martin,” in March 1999 — has revealed what he’s really wild for: feet.“I love feet. I have a foot thing,” Martin told GQ in a new profile.