With 50-75 devotees flocking to Steve Ross' classes, obtaining mat space may be as much of a challenge as some of the power poses. Since when did hip-hop music replace mantras? Since Ross took Brentwood and regulars such as Meg Ryan and Woody Harrelson by storm. Partial to more traditional yoga classes? Popular Kick Ass Yoga is taught by Ted McDonald who leads iyengar-influenced rigorous flow classes. Both instructors lead free chants once a month to encourage interactive meditation. Dedicated to education of the mind as well as the body, Maha Yoga regularly invites spiritual teachers to speak.