It is exclusive, extravagant, and posher than any other karaoke party in Miami. But if you can make it upstairs to the second floor of Casa Tua's private club on a Wednesday evening, you'll be in for a helluva night. Here, socialites, minor European royalty, and celebrities belt out international classics such as "The Girl From Ipanema" and "Volare." Botoxed singers are accompanied by a drummer and a DJ, who keep the caterwauling at bay. One night, we witnessed Emilio Estefan take over the bongos. The talkative crowd didn't seem too excited about this impromptu jam session, but we rocked out to his Latin beat. Upstairs, other famous patrons have included Marisa Tomei, George Hamilton, Boris Becker, and Priscilla Presley. No word on whether they participated in karaoke night. The décor is sumptuous and reminiscent of a chic nightclub in Italy, and the visitors are truly international. Drinks are crazy-expensive, and there is a gourmet lounge menu (caviar, anyone?), but the real draw to this members-only space is watching drunken blue bloods tackle karaoke after too much gin. And like karaoke anywhere in the world, pretty it ain't. That's probably why Casa Tua hosts this soirée only once a week.