Paul Mitchell educator, Angie Spaulding, styles Rhiannon Aarons' hair on Tuesday, April 22, 2008, in the mobile 'Elle Eco Salon & Spa' at the Third Street Promenade during Earth Day. To commemorate Elle's third annual "green" issue, which hit stands on Tuesday, April 15, the magazine has dispatched a biodiesel-fueled bus, outfitted as an eco-salon and spa, to various shopping areas and attractions in Southern California. From now till Sunday, May 4, you can enjoy complimentary styling, mini-makeovers, and beauty treatments, as well as samples of eco-friendly beauty products from sponsors such as Juice Beauty, Paul Mitchell, and Physicians Formula. Each guest will be able to climb onboard the bus for 10-to-20-minute treatments at one of the three styling stations.