No matter if you’re a rapper or a relative, you’ve got to take your shoes off in Sean “Diddy” Combs’ house. The music titan threw a raging party with Ciroc Vodka at his Star Island mansion in Miami on Saturday night during Ultra Music Festival — and all had to wear slippers. The bash drew DJs including Erick Morillo, Rony Seikaly, Felix da Housecat and Jamie Iovine, the son of music mogul Jimmy Iovine. We’re told that security guards instructed everyone to take off their shoes — including women who had to kick off their fashionable heels, as no footwear whatsoever is permitted on Diddy’s gleaming floors. “There is a no-shoe rule,” an insider told us. “Everyone gets slippers as they enter.”