Hayden Panettiere, Kimberly Caldwell, Paris Hilton, and Robbie Williams were on hand for the 2 B Free Fall 2007 Collection Event on Monday (March 19) at Boulevard3 in Los Angeles. Watch highlights below. Check out pictures from FilmMagic, RexFeatures, GettyImages (arrivals / inside), and WireImage (arrivals & front row / show / backstage & front row).