GOING HOLLYWOOD: Los Angeles designer Jenni Kayne will open her first store, on Almont Drive in West Hollywood between Melrose Avenue and Santa Monica Boulevard, in late September or early October. The 5,000-square-foot space, formerly a furniture store, will be launched with an event during Los Angeles Fashion Week in October. "I think it's the next step for my business," said Kayne. "We have such a great following and private clientele here, and there isn't one store that has such a true representation of the collection, [because] everyone buys so differently." The boutique will carry the designer's rtw line, along with capsule accessories, men's wear and baby collections produced exclusively for the store. Kayne, who added that she would eventually like to open a store in New York, said the boutique would also stock lifestyle items including vintage books and antique jewelry.