Notorious shower singers should give Rosen Music Studio in Koreatown a shot. The vibrant karaoke joint is perfect for single-person booth sessions for anyone who just wants to work on hitting those Mariah Carey high notes. You can harmonize all night long to an upbeat array of classics, or bring in a couple of trusted friends to offer advice. When all that singing gets you hungry, buzz the waitstaff and order up an oyster pancake or the steamed pork with bean sprouts. Dishes here skew towards seafood, but that's a good thing: you'll need to feel light on your feet for your second round of personalized karaoke. And when you're finally ready to show off your skills, book a chic, modern room full of eye-widening television screens that will make the whole room want to sing along. Just be sure to tell them that you're the star.